Topics by letter A

  1. alligator and crocodile
  2. able and capable
  3. ale and beer
  4. allergy and common-cold
  5. advertising and marketing
  6. almonds and peanuts
  7. assemble and coalesce
  8. atom and electron
  9. alienation and disposal
  10. authentic and genuine
  11. alone and lonely
  12. affect and effect
  13. agreement and contract
  14. aids and hiv
  15. amphetamine and cocaine
  16. android and apple
  17. algebra and trigonometry
  18. arteriosclerosis and atherosclerosis
  19. aldose and ketose
  20. angel and ghost
  21. accurate-measurement and precise-measurement
  22. arson and incendiary
  23. actor and waiter
  24. anxious and excited
  25. aggression and assertion
  26. amphibian and reptile
  27. able and willing
  28. anarchist and fascist
  29. abundant and greedy
  30. article and purview
  31. algeria and morocco
  32. accord and bestow
  33. attractive and magnetic
  34. antiphrasis and antithesis
  35. arrogant and confident
  36. antinomy and oxymoron
  37. adventurous and intrepid
  38. alpacas and llamas
  39. articulate and eloquent
  40. aporia and malapropism
  41. acceleration and velocity
  42. al-qaeda and taliban
  43. age and generation
  44. adam-smith and karl-marx
  45. adage and proverb
  46. average and median
  47. art and nudity
  48. associate and conflate
  49. ambiguity and uncertainty
  50. atrophy and deteriorate
  51. absolve and vindicate
  52. acquit and exonerate
  53. array and plethora
  54. annulment and divorce
  55. accord and congruence
  56. agitate and irritate
  57. apple and fenland
  58. ambiance and atmosphere
  59. algebra and arithmetic
  60. alienate and ostracize
  61. attorney and lawyer
  62. anxiety-attack and hot-flash
  63. accuracy and precision
  64. ale and lager
  65. apartment and condo
  66. attain and obtain
  67. autotroph and heterotroph
  68. adhesion and cohesion
  69. aerobic and anaerobic
  70. affidavit and declaration
  71. aristotle and plato
  72. antiperspirant and deodorant
  73. absolute and relative
  74. ape and gorilla
  75. anger and rage
  76. adhd and bipolar-disorder
  77. argumentative and discursive
  78. agp and pci
  79. apa and mla
  80. asthma and bronchitis
  81. attorney and paralegal
  82. acrylic and enamel
  83. aquamarine and topaz
  84. anxiety and fear
  85. accountant and auditor
  86. allergy and asthma
  87. arthritis and tendonitis
  88. asthma and pneumonia
  89. anxiety and stress
  90. average and mean
  91. accountant and bookkeeper
  92. asthma and bronchiolitis
  93. affirmation and prayer
  94. analog and digital
  95. ampule and vial
  96. ajax and javascript
  97. appreciation and gratitude
  98. america and china
  99. assurence and audit
  100. agnostic and atheist
  101. allot and alot
  102. act-of-god and natural-disaster
  103. award and reward
  104. acceptance and tolerance
  105. atom and ion
  106. allopathic and osteopathic
  107. average-basis and average-rate
  108. anion and cation
  109. altar and alter
  110. arbitration and litigation
  111. arbitration and mediation
  112. addiction and dependence
  113. appropriation and authorization
  114. ant and termite
  115. anxiety and depression
  116. animation and animatronics
  117. add and adhd
  118. addiction and compulsion
  119. aluminum and steel
  120. advil and aleve
  121. amortization and depreciation
  122. alpha and omega
  123. advertising and public-relations
  124. anaesthesia and analgesia
  125. artistic and creative
  126. astronomy and astrophysics
  127. alienation and estrangement
  128. azalea and rhododendron
  129. awol and desertion
  130. anger and hostility
  131. ascii and binary
  132. anxiety-disorder and panic-disorder
  133. appetite and hunger
  134. abundance and wealth
  135. assertive and pushy
  136. among and between
  137. ampere and kilowatt
  138. arid and drought
  139. autism and gifted
  140. abnormality and normality
  141. arid and dry
  142. admissibility and relevance
  143. affront and offend
  144. abstract and concrete
  145. abscissa and domain
  146. abase and abate
  147. after and afterward
  148. artery and vein
  149. ambiguity and risk
  150. alternator and generator
  151. algorithmic and formulaic
  152. awning and canopy
  153. appoggiatura and elliptical
  154. anarchy and disestablishmentarianism
  155. aristocracy and feudalism
  156. actor and actress
  157. algae and angiosperm
  158. affection and love
  159. asbestosis and mesothelioma
  160. autism and cerebral-palsy
  161. assurance and insurance
  162. action and reaction
  163. ambition and aspiration
  164. aspiration and desire
  165. arthritis and gout
  166. although and despite
  167. aim and requirement
  168. aa and na
  169. achiever and dreamer
  170. apple and quince
  171. accident and incident
  172. abase and abash
  173. asynchronous and synchronous
  174. aspiration and inspiration
  175. apr and note rate
  176. art and design
  177. asthma and chronic-bronchitis
  178. allegory and analogy
  179. arena and stadium
  180. assuage and attenuate
  181. angiosperm and moss
  182. annuity and perpetuity
  183. ascii and unicode
  184. arabic and farsi
  185. assumption and presuppositions
  186. anti-rationalism and rationalism
  187. atelectasis and emphysema
  188. asbestosis and pleural-plaques
  189. asbestos and fiberglass
  190. asbestosis and emphysema
  191. asbestosis and pulmonary-fibrosis
  192. apparel and clothing
  193. admire and envy
  194. anemia and hemophilia
  195. arthritis and bursitis
  196. arthritis and rheumatoid-arthritis
  197. adhd and autism
  198. acid-reflux and heartburn
  199. arena and colliseum
  200. arena and field-house
  201. advance and advancement
  202. accrued-revenue and deferred-revenue
  203. asthma and copd
  204. altruistic and amiable
  205. arrogant and haughty
  206. adenoma and carcinoma
  207. acid-reflux and ulcer
  208. ambiguity and vagueness
  209. assurance and audit
  210. audit and review
  211. arrogant and contemptuous
  212. assessment and evaluation
  213. assessment and screening
  214. assault and battery
  215. abatement and remediation
  216. abatement and exemption
  217. abrogate and overrule
  218. accomplice and conspirator
  219. accounts-payable and accounts-receivable
  220. accretion and amortization
  221. anionic-polymarization and cationic-polymarizion
  222. awesome and awestruck
  223. arrow-root and casava
  224. absurdism and existentialism
  225. autobiography and memoir
  226. agave and honey
  227. agriculture and farming
  228. acrylic and polyester
  229. adoration and appreciation
  230. apple-ipad-3 and apple-ipad2
  231. ability and qualified
  232. authorize and entrust
  233. antique and curio
  234. austerity and thrifty
  235. aeroplane and aircraft
  236. alternating-current and direct-current
  237. assumption and proposition
  238. adjective and adverb
  239. arenas and stadium
  240. acrylic and polystyrene
  241. accusation and allegation
  242. autotrophic-eukaryotes and hetrotrophic-eukaryotes
  243. assumption-of-risk and volenti-non-fit-injuria
  244. aquired-immunity and natural-immunity
  245. absolute-assignment and collateral-assignment
  246. appraised-value and assessed-value
  247. abdominoplasty and abdominoscopy
  248. abdominoplasty and tummy-tuck
  249. abdominoplasty and lipoplasty
  250. acetaminophen and ibuprofin
  251. allergic-conjunctivitis and pink-eye
  252. alopecia and male-pattern-baldness
  253. analgesia and analgesic
  254. antibiotic and probiotic
  255. assumption and principle
  256. antisocial-personality-disorder and multiple-personality-disorder
  257. antisocial and introvert
  258. apheresis and blood-transfusion
  259. astigmatism and cataracts
  260. asymmetry and symmetry
  261. anxiety and bipolar
  262. alpha-hydroxy-acid and retinol
  263. acid-rinse and skin-peel
  264. algae and seaweed
  265. ayurveda and traditional-chinese-medicine
  266. assurance and reinsurance
  267. animal-antibiotics and human-antibiotics
  268. attitude and personality
  269. attitude and disposition
  270. abdominoplasty and panniculectomy
  271. anterior-resection and ap-resection
  272. anterior-resection and hartmann-procedure
  273. aquit and exonerate
  274. ailment and malady
  275. adenocarcinoma and mesothelioma
  276. accutane and acne-laser-treatment
  277. accutane and retin-a
  278. accutane and spironolactone
  279. annuity-settlement and lump-sum
  280. anglicana and orthodox
  281. anger and passion
  282. allergy and illness
  283. allograft and autograft
  284. adaptive and responsive
  285. arborizing-veins and spider-veins
  286. adware and malware
  287. apple-brandy and pomance-brandy
  288. anonymous-function and closure
  289. arthritis and osteoarthritis
  290. avant-garde and futurism
  291. avante-garde and odalisque
  292. arena and music-hall
  293. ameliorate and pacify
  294. arid and sere
  295. adam-smith and john-maynard-keynes
  296. adviser and benefactor
  297. advise and exhort
  298. avante-garde and forefront
  299. avante-garde and metropolis
  300. adapt and adopt
  301. avante-garde and courtesan
  302. await and wait
  303. argue and wrangle
  304. abide and resided
  305. annuity and structured-settlement
  306. ascertain and assert
  307. annuity and installment-note
  308. annuity-due and immediate-annuity
  309. absolutism and dogmatic
  310. a-cash-balance-benefit-program and a-defined-benefit-program
  311. authoritarianism and dogmatic
  312. activty-diagram and sequence-diagram
  313. analysis and synthesis
  314. abstraction and encapsulation
  315. allele and gene
  316. ass and donkey
  317. aim and purpose
  318. axiom and hypothesis
  319. absolutism and totalitarian
  320. advocate and recommend
  321. affluent and wealthy
  322. aware and mindful
  323. apple and banana
  324. aramids and polyamide
  325. aristocracy and oligarchy
  326. annuity and lump-sum-payment
  327. aristocracy and monarchy
  328. amenities and facilities
  329. axiology and metaphysics
  330. army and military
  331. attribute and characteristic
  332. abhor and hate
  333. aspect and characteristic
  334. access-2013 and dbase-8-plus
  335. alpha-hydroxy and retinol
  336. agreement and protocol
  337. amazing and phenomenal
  338. agreement and legal-protocol
  339. adopt and pass
  340. assyria and persia
  341. approach and method
  342. agile and rup
  343. abnormal and irregular
  344. analingus and cunnalingus
  345. animals and people
  346. aid and amenity
  347. amenity and appliance
  348. allele and trait
  349. alexander and marcus
  350. anode and cathode
  351. abate and attenuate
  352. alleviate and attenuate
  353. aspnet and php
  354. arts and athletics
  355. ambition and apirant
  356. alicit and derive
  357. auber and wasp
  358. ambivalence and contradiction
  359. aware and conscious
  360. apricot-kernel-oil and apricot-oil
  361. ambigious and cryptic
  362. ambiguous and cryptic
  363. aquitted and not-guilty
  364. acquit and not-guilty
  365. assume and surmise
  366. altruitic and magnanimous
  367. altruistic and magnanimous
  368. advil and motrin
  369. animal and human
  370. alice and andrew
  371. american-pear and korean-pear
  372. air-mattress and coil-mattress
  373. acrylic and mylar
  374. arthritis and pseudogout
  375. administration and management
  376. axiom and construct
  377. adsl and dsl
  378. arse and elbow
  379. advil and alive
  380. apple and taco
  381. annoyed and irritated
  382. accrual and entitlement
  383. antibodies and immunoglobulin
  384. actor and thespian
  385. aquaeous-humor and vitreous-humor
  386. aqueous-humor and vitreous-humor
  387. an-art-gallery and museum
  388. art-gallery and museum
  389. abb and sbb
  390. adjective and attribute
  391. alzheimers and dimensia
  392. android and iphone
  393. alzheimers and senile-dementia
  394. anemia-of-chronic-disease and pernicious-anemis
  395. anemia-of-chronic-disease and pernicious-anemia
  396. android-cell-phone and apple-cell-phone
  397. aeroplane and jet
  398. apprehend and grasp
  399. alpha-hydroxy-acids and retinol
  400. acid and lsd
  401. arrogance and confidence
  402. arrogance and pride
  403. assign and delegate
  404. affliction and misfortune
  405. aeroplane and helicaptor
  406. aeronautical and mechanical
  407. aeronautical-field and mechanical-field
  408. apple and white
  409. agoraphobia and social-phobia
  410. ambitious and driven
  411. agitated and irritated
  412. arrogant and egotistical
  413. and and of
  414. almond and penut
  415. ask and question
  416. acquit and justify
  417. alternator and motor
  418. audience and spectator
  419. attrition and detrition
  420. appreciation and expectation
  421. anticipate and expect
  422. adoration and love
  423. antibiotics and toxins
  424. adherence and adhesion
  425. acquire and obtain
  426. apple-ipad-computer and apple-macbookpro-computer
  427. assessment and review
  428. algebraic-expression and polynomial
  429. acerbic and acrid
  430. acidulous and acrimonious
  431. ardent and vehement
  432. adb-port and serial-port
  433. adb-port and appletalk
  434. abs and arms
  435. apple-imac and apple-pro
  436. angiography and arteriogram
  437. apple-i-phone-5 and galaxy-s4
  438. agile and ductile
  439. amish and mennonite
  440. absolutist and fanatic
  441. autocracy and commonwealth
  442. apricots and peaches
  443. apple and pear
  444. apple and batman
  445. aashray and umeed
  446. apricot and peach
  447. amend and mend
  448. agitation and irritation
  449. agitation and friction
  450. agitation and pain
  451. agitation and lubricity
  452. agitation and restlessness
  453. agitation and boredom
  454. agriculture and former
  455. autocrat and despot
  456. antihistamine and sudafed
  457. antihistamine and decongestant
  458. axiom and law
  459. acerb and acerbic
  460. apr and lar
  461. apple-iphone-5c and samsung-galaxy-s4
  462. apartment and studio-apartment
  463. ataxia and atrophy
  464. affable and amiable
  465. alu and cpu
  466. acetominophen and ibuprophen
  467. adverb and conjunction
  468. atomic-bomb and nuclear-bomb
  469. anthropology and archaeology
  470. apple-cider and apple-juice
  471. asynchronous and syncronous
  472. atypical and typical
  473. atypical and non-conformist
  474. ambiguous and vague
  475. apple and samsung
  476. avenge and revenge
  477. abate and abridge
  478. agile and nimble
  479. alzheimers and dementia
  480. adam-smith and karl-heinrich-marx
  481. awareness and consciousness
  482. atomic-mass and atomic-weight
  483. arminian and reformed
  484. almond-milk and soy-mild
  485. almond-milk and soy-milk
  486. asteroid and meteor
  487. autotrophs and heterotrophs
  488. am-radio and fm-radio
  489. agate and onyx
  490. active-ftp and passive-ftp
  491. agate and onzy
  492. agate and onxy
  493. auspicious and propitious
  494. answers and findings
  495. answer and finding
  496. attack and reproach
  497. aspect and thing
  498. anxiety and frustration
  499. accordion and concertina
  500. arena and coliseum
  501. apparatus-gymnastics and tumbling
  502. agreeable and discordant
  503. aphorism and epigram
  504. area and arena
  505. accountance and accounting
  506. accounting and bookkeeping
  507. astimatism and cataract
  508. american-days and romanian-days
  509. autonomy and self-determination
  510. arartment and house
  511. apartment and house
  512. adhere and comply
  513. analgesic and anesthesia
  514. acquitted and innocent
  515. aliens and demons
  516. axe and hammer
  517. arsonist and pyromaniac
  518. abuse and misuse
  519. arrogant and braggart
  520. apple and presumptuous
  521. apple and complacent
  522. abate and abdicate
  523. apple-tree and banana-tree
  524. ak47 and ak74
  525. apathy and empathy
  526. arena and fieldhouse
  527. arrogant and self-center
  528. architect and architectural-engineer
  529. allow and permit
  530. aggravation and agitation
  531. arcane and esoteric
  532. act and sat
  533. activity-diagram and flow-chart
  534. apes and monkeys
  535. amelia-earhart and the-wright-brothers
  536. android and apple-company
  537. apart and away
  538. antecedent and predecessor
  539. attached and enclosed
  540. assumption and belief
  541. atom and molecule
  542. acrylic-fabric and polyester-fabric
  543. ancient-greek and greek
  544. assignment and set-over
  545. abogated and abogating
  546. azithromycin and erythromycin
  547. arrogant and pompous
  548. agriculture and husbandry
  549. applied-linguistics and syntax
  550. admissibility and relevancy
  551. absolustism and autocracy
  552. applied-science and pure-science
  553. autonomy and freedom
  554. arcylic and cellulose-acecate
  555. augumented-reality and virtual-reality
  556. augumented-reality and mixed-reality
  557. american-central-business-district and european-central-business-district
  558. apple and ravine
  559. agreeable and amenable
  560. arrogant and self-assured
  561. application-programming-interface and database
  562. alternative and option
  563. array and vector
  564. aim and objective
  565. announcement and enunciation
  566. ageing-oven and annealing-furnace
  567. answer and problem
  568. apparatus and device
  569. acetal and nylon
  570. algeria and algiers
  571. angina and atherosclerosis
  572. australian-shephard and border-collie
  573. advil and ibuprofen
  574. adam-smith and john-keynes
  575. algebra and calculus
  576. aneurysm and embolism
  577. analogy and parable
  578. accounts-receivable and billing-collections
  579. advice and advise
  580. a and one
  581. admonish and castigate
  582. apple and stupidity
  583. android and windows
  584. affirmation and oath
  585. affidavit and affirmation
  586. affirmation and declaration
  587. a-little and little
  588. apple-imac and macbook-pro
  589. ambiguous and ambivalent
  590. atheism and skepticism
  591. adam-smith and john-stuart-mill
  592. acerbic and acrimonious
  593. assessment and estimate
  594. access and hills
  595. abbreviation and acronym
  596. attitude and belief
  597. aaron-beck and bf-skinner
  598. autotrophs and hetrotrophs
  599. auk and penguin
  600. auk and cormorant
  601. acquired and enquired
  602. ashlee-simpson and jessica-simpson
  603. assume and presume
  604. academic-specialty and academic-track
  605. aristocracy and totalitarianism
  606. aw-of-diminishing-returns and ceteris-paribus
  607. asthenosphere and lithosphere
  608. aspiration and expectation
  609. assassination and murder
  610. asynchronous-transfer-mode and frame-relay
  611. accept and except
  612. allusion and illusion
  613. any-one and anyone
  614. assure and insure
  615. assure and ensure
  616. apprehensive and ominously
  617. antihistamines and decongestant
  618. abstract-class and inheritance
  619. adjacents and consectutive
  620. activated-complex and reaction-intermediate
  621. approach and strategy
  622. a and orange
  623. actual-cash-value and fair-market-value
  624. apparel and fashion
  625. ambivalence and paradox
  626. aa and na
  627. abate and remediate
  628. abatement and remeidation
  629. alive and live
  630. acquitted and not-guilty
  631. acrylic-nails and gel-nails
  632. acrylic and gel
  633. angiogram and arteriogram
  634. allusion and delusion
  635. altruism and generosity
  636. alittle and little
  637. apple-iphone-5c and galaxy-s5
  638. affirm and warrant
  639. apple-5c and samsung-galaxy4
  640. abraxane and taxetere
  641. awesome-guy and cool-guy
  642. asphalt and macadam
  643. abundant and redundant
  644. antecedent and anterior
  645. antecednt and anterior
  646. acrylic-fiber and polyester-fiber
  647. apple-is-solid and orange-is-juicey
  648. arc-lamp and light-bulb
  649. annuity-due and ordinary-due
  650. appliance and gadget
  651. analysis and deductuve-reasoning
  652. accounts-receivable and collections
  653. anorexia and bulimia
  654. amnion and placenta
  655. android-tablet and windows-8-tablet
  656. abraham-lincoln and barrack-obama
  657. apprentice and novice
  658. apple and name
  659. apprentice and protege
  660. appreciation and commendation
  661. advertising and promoting
  662. ayurveda and tcm
  663. alaskan-husky and siberian-husky
  664. apple and car
  665. apple and red
  666. admirable and admiring
  667. almond and peanut
  668. adolf-hitler and josef-stalin
  669. animal-cell and plant-cell
  670. anthroplogy and archeology
  671. acteminophen and ibuprofen
  672. all-wheel-drive and four-wheel-drive
  673. arlene and emma
  674. arlo and emma
  675. assiduous and industrious
  676. arcade and gallery
  677. arcade and colonnade
  678. army and marines
  679. anxious and aprehensive
  680. apprehend and comprehend
  681. adapt and adept
  682. anxious and apprehensive
  683. average and typical
  684. australia and united-stages
  685. australia and united-states
  686. analog-multimeter and digital-multimeter
  687. airconditioner and dehumidifier
  688. apples and orange
  689. astral and celestial
  690. acute-eczema and contact-dermatitis
  691. alpha-hydroxy and hyluronic-acid
  692. algae and angiosperms
  693. asteroid and comet
  694. apartment and condomedium
  695. axiology and epistemology
  696. axiology and logic
  697. acerbic and cynical
  698. antihhistimine and decongestant
  699. apple-5c and galaxy-s5
  700. apple and mel-brooks-the-producers
  701. apple and mel-brooks
  702. abuse and rebuke
  703. apples and oranges
  704. activity-diagram and sequence-diagram
  705. ambiguous and nebulous
  706. american-pale-ale and india-pale-ale
  707. accontant and cashier
  708. accountant and cashier
  709. aristocrat and noble
  710. advil and asprin
  711. attribute and chatacterics
  712. automobile and automotive
  713. alveoli and bronchioles
  714. aspirin and ibuprofin
  715. austarlia and congo
  716. australia and congo
  717. apartel-condominium and resort
  718. allogation and disclosure
  719. apple and smsung
  720. alleviate and ameliorate
  721. alteration and reconfiguration
  722. alteration and re-configuration
  723. arrange and organize
  724. antisocial and intrevert
  725. ab and ap
  726. american-psychological-association and modern-language-association
  727. arthritis and bursitus
  728. abase and debase
  729. apple-4s and samsung-galaxy-s4
  730. alliance and confederation
  731. arrogant and egocentric
  732. anterior-resection and sigmoid-colectomy
  733. autonous-clg and government-clg
  734. able and compare
  735. autonomy and independent
  736. a-h-ayer and c-l-stevenson
  737. aj-ayer and cl-stevenson
  738. autarch and dictator
  739. avodart and proscar
  740. agitated and irritable
  741. astigmatisum and stigmatisum
  742. apple and furnace
  743. amenity and facilities
  744. amenity and facility
  745. apple and microsoft
  746. arenas and theaters
  747. africa and america
  748. anarchy and oligarchic
  749. allegation and averement
  750. acrylic and nylon
  751. asteroid and meteoroid
  752. asteroid and planetoid
  753. abate and alleviate
  754. adsense and amazon-associate
  755. android and ios
  756. absolute-assignment and irrevocable-assignment
  757. africa and asia
  758. amoral and immoral
  759. abolish and demolish
  760. assumption and consideration
  761. absolutist and c
  762. aerobic-exercise and fitness-exercise
  763. america and india
  764. apple and melon
  765. american-revolution and columbus
  766. american-revolution and political-culture-during-the-time-of-columbus
  767. apple and book
  768. apple and google
  769. assuage and palliate
  770. against-immigration and for-immigration
  771. absolute-age and relative-age
  772. atom and quark
  773. aweber and mailchimp
  774. adolf-hitler and kim-jung-il
  775. allegory and metaphor
  776. alien and people
  777. almond-paste and almond-pastry-filling
  778. all and whole
  779. auspicious and suspicious
  780. activity-diagram and state-diagram
  781. amoxicillian and pennicillian
  782. amoxicillin and penicillin
  783. apheresis and transfusion
  784. anthropology and natural-sciences
  785. amorous and horny
  786. amateur and professional
  787. apropos and pertinent
  788. assassinate and murder
  789. americans and diebetes
  790. astute and incisive
  791. acute and ingenious
  792. acute and incisive
  793. ambiguity and opportunity
  794. abstruse and subtle
  795. anaphora and polysyndeton
  796. antinomy and paradox
  797. angiogram and angioplasty
  798. abeyance and abjure
  799. avodart and finasteride
  800. at and in
  801. aptitude and dexterity
  802. acrylic-paint and enamel-paint
  803. air-mass and front
  804. admiration and desire
  805. admire and desire
  806. ada and derin
  807. affidavit and contract
  808. alluvial-plains and sea-stacks
  809. approve and authorise
  810. argumentative-writing and discursive-writing
  811. affidavit and certificate-of-compliance
  812. affidavit and compliance-certification
  813. anthroposystem and ecosystem
  814. association and club
  815. atorvastoma and crestor
  816. aggravate and exacerbate
  817. affiliate and merchant
  818. alpaca and llama
  819. alpha-hydroxy-acid and glycolic-acid
  820. attributes and characteristics
  821. affection and tenderness
  822. accommodate and helpful
  823. affect and emotion
  824. allograft and alloplast
  825. aisle and lane
  826. asbestos and emphysema
  827. alligator and crocodiles
  828. apple and life
  829. apple and oranges
  830. abnormal and bizarre
  831. adaptive-immunity and inflammation
  832. amd and intel
  833. ac-motor and dc-motor
  834. asbestosis and silicosis
  835. autonomy and free-will
  836. ascus and basidium
  837. alkaline-earth-metal-group and alkaline-metal-group
  838. alkaline and alkaline-earth
  839. aim-at and aim-to
  840. audition and tryout
  841. are and is
  842. among and amongst
  843. a-while and awhile
  844. assumption and preassumption
  845. avenue and street
  846. atomic-bomb and hydrogen-bomb
  847. alone and money
  848. actions and tactics
  849. adjustment and correction
  850. autogenous-welding and mig-welding
  851. ability and capability
  852. agile and waterfall
  853. agile-development and waterfall-development
  854. assumptions and presupposition
  855. angiosperm and fungi
  856. anime and cartoon
  857. authorize and deputize
  858. appendix and bibliography
  859. affect and undergo
  860. aei and ou
  861. animation and cartoon
  862. assume and suppose
  863. age and mature
  864. above and over
  865. ambition and driven
  866. ainsi and donc
  867. anchovies and sardines
  868. aquamarine and blue-topaz
  869. airbus and boeing
  870. apps and widgets
  871. apple-s6-phone and galaxay-note-s4
  872. accountability and responsibility
  873. archae and bacteria
  874. abate and abrogate
  875. anoxia and asphyxia
  876. autarchy and autonomy
  877. android and cyborg
  878. apricot-kernel-oil and apricot-seed-oil
  879. antithesis and paradox
  880. adenoma and polyp
  881. astronomy and star-gazing
  882. adore and fond
  883. asymetric and asymetrical
  884. asymmetric and asymmetrical
  885. appeal and dispute
  886. alien and demon
  887. and and or
  888. alabama-fireworks and georgia-fireworks
  889. announciated and pronounciation
  890. africa and american
  891. apostate and proselytize
  892. arena and colleseum
  893. apple and penis
  894. asthma and brinchiolitis
  895. asthma and bronchialitis
  896. asap and stat
  897. assurance and reassurance
  898. artifacts and fossils
  899. actual and factual
  900. actually and factual
  901. accurate and factual
  902. activity-diagram and work-flows-diagram
  903. attention and intention
  904. a-chemical-radical and polyatomic-ion
  905. alveolar and fricative
  906. apple and orange
  907. anole and iguana
  908. aramids and nylon
  909. allograft and homograft
  910. appointing and appointment
  911. agricultural-science and agriculture-or-farming
  912. apherisis and dialsis
  913. acquire and orange
  914. acquire and derive
  915. animal and man
  916. antithesis and dichotomy
  917. aboriginal and torres-strait-islanders
  918. a and an
  919. attractive and good-looking
  920. attractive and pretty
  921. aircraft and airplane
  922. antiquarianism and archaeology
  923. although and notwithstanding
  924. active-duty and army-reserve
  925. apple-ipad-mini and apple-ipod
  926. amerasian and vietnamese-girlfriend-1972
  927. apple-cider-vinegar and malt-vinegar
  928. affair and event
  929. argument and thesis
  930. artificial-intellegence and artificial-neural-network
  931. angry and mad
  932. ancho-chile-flour and ground-ancho-chile-pepper
  933. almond-paste and marzipan
  934. as-long-as and provided
  935. a-one-man-army and an-army-of-one
  936. astringent and toner
  937. allowance and subsidy
  938. as-soon-as and once
  939. acid and base
  940. accountancy and accounting
  941. aristocracy and theocracy
  942. artistic and creativity
  943. active-dry-yeast and quick-rise-yeast
  944. apples and bananas
  945. a-rock and the-rock
  946. advil and tylenol
  947. amnion and chorioallantois
  948. allantochorion and amnion
  949. appearance and viewed
  950. accect and effect
  951. acciaccatura and appoggiatura
  952. autocratic and democratic
  953. almond-filling and almond-paste
  954. argumentative and assertive
  955. assets-are-acquired-by-issuing-common-stock and assets-are-acquired-by-using-retained-earnings
  956. aridity and drought
  957. accountable and negligence
  958. appointed and elected
  959. anger and spite
  960. apple and pineapple
  961. acetyl-l-carnitine and l-carnitine
  962. acetyl-l-carnetine and l-carnitine