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We found 39 dictionaries with English definitions that include the word aha:
Click on the first link on a line below to go directly to a page where "aha" is defined.

General (26 matching dictionaries)

1. AHA, aha: Merriam-Webster.com [home, info]
2. AHA, aha: Oxford Learner's Dictionaries [home, info]
3. AHA, aha: American Heritage Dictionary of the English Language [home, info]
4. aha: Collins English Dictionary [home, info]
5. aha: Macmillan Dictionary [home, info]
6. Aha, aha: Wordnik [home, info]
7. aha: Cambridge Advanced Learner's Dictionary [home, info]
8. AHA, aha: Wiktionary [home, info]
9. aha: Webster's New World College Dictionary, 4th Ed. [home, info]
10. aha: The Wordsmyth English Dictionary-Thesaurus [home, info]
11. aha: Infoplease Dictionary [home, info]
12. AHA, Aha, a.h.a: Dictionary.com [home, info]
13. aha: Online Etymology Dictionary [home, info]
14. aha: UltraLingua English Dictionary [home, info]
15. aha: Cambridge Dictionary of American English [home, info]
16. AHA, Aha (Book of Mormon), Aha (disambiguation), Aha (streaming service), Aha (wasp), Aha: Wikipedia, the Free Encyclopedia [home, info]
17. Aha: Online Plain Text English Dictionary [home, info]
18. aha: Webster's Revised Unabridged, 1913 Edition [home, info]
19. Aha: AllWords.com Multi-Lingual Dictionary [home, info]
20. aha: Webster's 1828 Dictionary [home, info]
21. AHA: Stammtisch Beau Fleuve Acronyms [home, info]
22. aha: Free Dictionary [home, info]
23. aha: LookWAYup Translating Dictionary/Thesaurus [home, info]
24. AHA: Dictionary/thesaurus [home, info]

Business (1 matching dictionary)

25. AHA: Construction Term Glossary [home, info]

Medicine (3 matching dictionaries)

26. AHA: Hair Facts [home, info]
27. AHA: Dictionary of Cancer Terms [home, info]
28. AHA, Aha: Medical dictionary [home, info]

Miscellaneous (5 matching dictionaries)

29. AHA: Ka-BOOM! Comicbook Words on Historical Principles [home, info]
30. Aha: Encyclopedia of the Orient [home, info]
31. AHA: Acronym Finder [home, info]
32. AHA: Three Letter Words with definitions [home, info]
33. AHA: AbbreviationZ [home, info]

Religion (1 matching dictionary)

34. Aha: Easton Bible [home, info]

Science (1 matching dictionary)

35. Aha (c 3100 BC): Archaeology Wordsmith [home, info]

Slang (1 matching dictionary)

36. AHA, Aha: Urban Dictionary [home, info]

Tech (1 matching dictionary)

37. AHA: DOD Dictionary of Military Terms: Joint Acronyms and Abbreviations [home, info]

Quick definitions from Macmillan ( ) Provided by Quick definitions from Wiktionary (aha) ▸ noun:  Initialism of alpha-hydroxy acid. [(organic chemistry) Any hydroxy acid, of general formula RCH(OH)COOH, used in the cosmetic industry for their supposed property of reducing wrinkles.] ▸ noun:  (countable, property law, England & Wales) Initialism of Agricultural Holdings Act tenancy. [(property law, England & Wales) Synonym of full agricultural tenancy.] ▸ noun:  (medicine, cardiology) Initialism of American Heart Association: an American non-profit organization focusing on cardiovascular medical research, education and care. ▸ noun:  (countable, property law, England & Wales) Initialism of Agricultural Holdings Act. ▸ Word origin ▸ Words similar to aha ▸ Usage examples for aha ▸ Idioms related to aha (New!) ▸ Popular adjectives describing aha ▸ Words that often appear near aha ▸ Rhymes of aha ▸ Invented words related to aha