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We found 79 dictionaries with English definitions that include the word Ad:
Click on the first link on a line below to go directly to a page where "Ad" is defined.

General (33 matching dictionaries)

1. AD, -ad, ad, ad-: Merriam-Webster.com [home, info]
2. AD, -ad, -ad, ad, ad, ad, ad-: Oxford Learner's Dictionaries [home, info]
3. A.D, AD, ad, ad, ad-: American Heritage Dictionary of the English Language [home, info]
4. -ad, ad, ad-: Collins English Dictionary [home, info]
5. A.D, AD, ad: Vocabulary.com [home, info]
6. A.D, ad: Macmillan Dictionary [home, info]
7. A.D, AD, A'd, Ad-, Ad, Ad, a'd, ad, ad, ad, ad, ad-, aD: Wordnik [home, info]
8. A.D, AD, a.d, ad: Cambridge Advanced Learner's Dictionary [home, info]
9. A.D, 'ad, -ad, ad, ad-: Wiktionary [home, info]
10. -ad, ad, ad-: Webster's New World College Dictionary, 4th Ed. [home, info]
11. A.D, ad, ad-: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. ad: Infoplease Dictionary [home, info]
13. AD(G), Ad-, -ad, .ad, a.d, ad, ad, ad-: Dictionary.com [home, info]
14. A.D, -ad, ad, ad-: Online Etymology Dictionary [home, info]
15. AD, ad: UltraLingua English Dictionary [home, info]
16. a.d, ad: Cambridge Dictionary of American English [home, info]
17. ad: Cambridge International Dictionary of Idioms [home, info]
18. .AD, A.D, A.D. (film), A.D. (miniseries), AD (band), AD (disambiguation), AD (poem), AD, 'Ad, A.d, Ad (disambiguation), Ad (name), Ad, .ad: Wikipedia, the Free Encyclopedia [home, info]
19. Ad-: Online Plain Text English Dictionary [home, info]
20. ad-: Webster's Revised Unabridged, 1913 Edition [home, info]
21. A.d, ad: Rhymezone [home, info]
22. Ad-: AllWords.com Multi-Lingual Dictionary [home, info]
23. ad: Webster's 1828 Dictionary [home, info]
24. -ad, ad-: MyWord.info [home, info]
25. A.D, AD, .ad, ad: Stammtisch Beau Fleuve Acronyms [home, info]
26. ad: All About Homonyms [home, info]
27. a.d, ad, ad-: Free Dictionary [home, info]
28. a.d, ad: Mnemonic Dictionary [home, info]
29. ad: WordNet 1.7 Vocabulary Helper [home, info]
30. AD, a.d, ad: LookWAYup Translating Dictionary/Thesaurus [home, info]
31. A.D, AD, ad-: Dictionary/thesaurus [home, info]

Art (5 matching dictionaries)

32. A.D, AD, ad: ArtLex Lexicon of Visual Art Terminology [home, info]
33. AD, ad(s): English-Chinese Dictionary of Graphic Communications (Big 5) [home, info]
34. Ad, ad, ad: Cooking Dictionary [home, info]
35. ad-: A Cross Reference of Latin and Greek Elements [home, info]
36. AD: Glossary of Stamp Collecting Terms [home, info]

Business (6 matching dictionaries)

37. AD: MoneyGlossary.com [home, info]
38. AD: Travel Industry Dictionary [home, info]
39. AD: Bloomberg Financial Glossary [home, info]
40. AD: Deardorff's Glossary of International Economics [home, info]
41. AD (disambiguation), AD: Financial dictionary [home, info]
42. AD: Glossary of Trade and Shipping Terms [home, info]

Computing (5 matching dictionaries)

43. AD, ad: Free On-line Dictionary of Computing [home, info]
44. AD: CCI Computer [home, info]
45. AD: Computer Telephony & Electronics Dictionary and Glossary [home, info]
46. AD: I T Glossary [home, info]
47. A.D, AD (disambiguation), AD: Encyclopedia [home, info]

Medicine (6 matching dictionaries)

48. Ad-: MedTerms.com Medical Dictionary [home, info]
49. AD: Reactive Attachment Disorder [home, info]
50. AD, ad, ad-: online medical dictionary [home, info]
51. AD: Sleep Terms [home, info]
52. AD (disambiguation), AD, -ad, a.d, ad-: Medical dictionary [home, info]
53. Ad-: Drug Medical Dictionary [home, info]

Miscellaneous (4 matching dictionaries)

54. ad: Sound-Alike Words [home, info]
55. AD, AD, AD: Terminology and Descriptions of Geneaological Words [home, info]
56. AD(G), AD: Acronym Finder [home, info]
57. AD: AbbreviationZ [home, info]

Religion (1 matching dictionary)

58. AD: Glossary of spiritual and religious terms [home, info]

Science (10 matching dictionaries)

59. ad: Dictionary of Botanical Epithets [home, info]
60. A.D: Archaeology Wordsmith [home, info]
61. A.D: LITHICS-NET's Glossary of Lithics Terminology [home, info]
62. AD: Eric Weisstein's World of Astronomy [home, info]
63. Ad, ad: Eric Weisstein's World of Mathematics [home, info]
64. AD: PlanetMath Encyclopedia [home, info]
65. ad-: Glossary of Roots of Botanical Names [home, info]
66. ad: A Dictionary of Quaternary Acronyms and Abbreviations [home, info]
67. AD: Anthropology dictionary [home, info]
68. AD, -ad: How Many? A Dictionary of Units of Measurement [home, info]

Slang (2 matching dictionaries)

69. Ad: Street Terms: Drugs and the Drug Trade [home, info]
70. A.D, a.d: Urban Dictionary [home, info]

Sports (2 matching dictionaries)

71. AD: Dog Fanciers Acronym List [home, info]
72. Ad, ad: Hickok Sports Glossaries [home, info]

Tech (5 matching dictionaries)

73. AD: GEOGRAPHIC INFORMATION SYSTEMS, CARTOGRAPHY, AND REMOTE SENSING [home, info]
74. Ad: AUTOMOTIVE TERMS [home, info]
75. AD: DOD Dictionary of Military Terms: Joint Acronyms and Abbreviations [home, info]
76. AD: Glossary of Agricultural Terms, Programs and Laws [home, info]
77. AD: Glossary of video terms [home, info]

(Note: See ading for more definitions.)

Quick definitions from WordNet (ad) ▸ noun:  a public promotion of some product or service ▸ adverb:  in the Christian era; used before dates after the supposed year Christ was born ("In AD 200") ▸ Also see ading ▸ Word origin ▸ Words similar to Ad ▸ Usage examples for Ad ▸ Idioms related to Ad (New!) ▸ Popular adjectives describing Ad ▸ Words that often appear near Ad ▸ Rhymes of Ad ▸ Invented words related to Ad