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We found 50 dictionaries with English definitions that include the word oh:
Click on the first link on a line below to go directly to a page where "oh" is defined.

General (31 matching dictionaries)

1. OH, oh: Merriam-Webster.com [home, info]
2. OH, OH, oh, oh, oh: Oxford Dictionaries [home, info]
3. OH, oh, oh: American Heritage Dictionary of the English Language [home, info]
4. oh: Collins English Dictionary [home, info]
5. OH: Vocabulary.com [home, info]
6. OH, oh, oh: Macmillan Dictionary [home, info]
7. O'H, OH, Oh, Oh, Oh, oh, oH: Wordnik [home, info]
8. oh: Cambridge Advanced Learner's Dictionary [home, info]
9. OH, oh: Wiktionary [home, info]
10. oh: Webster's New World College Dictionary, 4th Ed. [home, info]
11. OH (O.), oh: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. oh: Infoplease Dictionary [home, info]
13. OH: Dictionary.com [home, info]
14. oh: Online Etymology Dictionary [home, info]
15. oh: UltraLingua English Dictionary [home, info]
16. oh: Cambridge Dictionary of American English [home, info]
17. OH-, OH (Ohio), OH (ohio), OH, Oh-, Oh (Ciara song), Oh (Korean surname), Oh (surname), Oh, The Oh: Wikipedia, the Free Encyclopedia [home, info]
18. Oh: Online Plain Text English Dictionary [home, info]
19. oh: Webster's Revised Unabridged, 1913 Edition [home, info]
20. Oh: Rhymezone [home, info]
21. Oh, oh: AllWords.com Multi-Lingual Dictionary [home, info]
22. oh: Webster's 1828 Dictionary [home, info]
23. OH, OH: Stammtisch Beau Fleuve Acronyms [home, info]
24. oh: All About Homonyms [home, info]
25. oh: Free Dictionary [home, info]
26. oh: Mnemonic Dictionary [home, info]
27. Oh, oh: LookWAYup Translating Dictionary/Thesaurus [home, info]
28. OH -, OH: Dictionary/thesaurus [home, info]
29. Oh: Wordnik [home, info]

Art (1 matching dictionary)

30. OH: Glossary of Stamp Collecting Terms [home, info]

Business (1 matching dictionary)

31. OH: Financial dictionary [home, info]

Computing (5 matching dictionaries)

32. OH: Netlingo [home, info]
33. OH: CCI Computer [home, info]
34. OH: BABEL: Computer Oriented Abbreviations and Acronyms [home, info]
35. OH: CNET Internet Glossary [home, info]
36. OH -, OH, Oh-, Oh: Encyclopedia [home, info]

Medicine (1 matching dictionary)

37. OH -, OH, Oh-, Oh, o.h: Medical dictionary [home, info]

Miscellaneous (4 matching dictionaries)

38. OH: Ka-BOOM! Comicbook Words on Historical Principles [home, info]
39. OH, OH: Acronym Finder [home, info]
40. OH: AbbreviationZ [home, info]
41. OH: United States Postal Service Official Abbreviations [home, info]

Science (2 matching dictionaries)

42. OH: Extragalactic Astronomy [home, info]
43. OH: A Dictionary of Quaternary Acronyms and Abbreviations [home, info]

Slang (1 matching dictionary)

44. O.H, Oh, Oh, oh: Urban Dictionary [home, info]

Tech (4 matching dictionaries)

45. oh: Webster's New World Telecom Dictionary [home, info]
46. OH: GEOGRAPHIC INFORMATION SYSTEMS, CARTOGRAPHY, AND REMOTE SENSING [home, info]
47. OH: DOD Dictionary of Military Terms: Joint Acronyms and Abbreviations [home, info]
48. OH: National Weather Service Glossary [home, info]

(Note: See ohing for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (Oh) ▸ noun:  a midwestern state in north central United States in the Great Lakes region ▸ name:  A surname (rare: 1 in 33333 families; popularity rank in the U.S.: #3508) ▸ Also see ohing ▸ Word origin ▸ Words similar to oh ▸ Usage examples for oh ▸ Popular adjectives describing oh ▸ Words that often appear near oh ▸ Rhymes of oh ▸ Invented words related to oh