We found 27 dictionaries that define the word omg:

General (12 matching dictionaries)

1. omg: Longman Dictionary of Contemporary English
2. OMG, OMG, omg: Merriam-Webster
3. OMG: Oxford Learner's Dictionaries
4. OMG: Collins English Dictionary
5. Omg, omg: Wordnik
6. OMG, omg: Cambridge Advanced Learner's Dictionary
7. O.M.G, OMG, omg: Wiktionary
8. OMG: Dictionary.com
9. OMG (Camila Cabello song), OMG (Gryffin and Carly Rae Jepsen song), OMG (Usher song), OMG (album), OMG (disambiguation), OMG (eSports), OMG (esports), OMG (gene), OMG (group), OMG (rapper), OMG, Omg: Wikipedia, the Free Encyclopedia
10. OMG, omg: Stammtisch Beau Fleuve Acronyms

Computing (10 matching dictionaries)

11. OMG: Webster's New World Hacker Dictionary
12. OMG: Free On-line Dictionary of Computing
13. OMG: Netlingo
14. OMG: CCI Computer
15. BABEL: Computer Oriented Abbreviations and Acronyms (No longer online)
16. CNET Internet Glossary (No longer online)
17. OMG (Object Management Group): Linktionary Networking Glossary
18. Webopedia (No longer online)
19. SMS Dictionary (No longer online)
20. OMG, .omg: Encyclopedia

Medicine (1 matching dictionary)

21. online medical dictionary (No longer online)

Miscellaneous (2 matching dictionaries)

22. OMG: Acronym Finder
23. AbbreviationZ (No longer online)

Slang (1 matching dictionary)

24. O.M.G, OMG: Urban Dictionary

Tech (1 matching dictionary)

25. OMG: GEOGRAPHIC INFORMATION SYSTEMS, CARTOGRAPHY, AND REMOTE SENSING

Definitions from Wiktionary ( ) ▸ noun:  (computing) Initialism of Object Management Group. Similar: LOL, haha, EWW, cuz, THX, Miley, LMFAO, TMZ, Kate Hudson, Heidi, more... Opposite: smh, meh, whatever, indifference ▸ Words similar to omg ▸ Usage examples for omg ▸ Idioms related to omg ▸ Wikipedia articles (New!) ▸ Popular adjectives describing omg ▸ Words that often appear near omg ▸ Rhymes of omg ▸ Invented words related to omg