We found 19 dictionaries that define the word otb:

General (13 matching dictionaries)

1. OTB, OTB: Merriam-Webster
2. OTB: Oxford Learner's Dictionaries
3. OTB: American Heritage Dictionary of the English Language
4. OTB: Collins English Dictionary
5. otb: Wordnik
6. OTB: Webster's New World College Dictionary, 4th Ed.
7. OTB: The Wordsmyth English Dictionary-Thesaurus
8. OTB: Infoplease Dictionary
9. OTB: Dictionary.com
10. OTB: Wikipedia, the Free Encyclopedia
11. OTB: Stammtisch Beau Fleuve Acronyms
12. OTB: TheFreeDictionary.com
13. OTB: Wiktionary

Miscellaneous (2 matching dictionaries)

14. OTB: Acronym Finder
15. AbbreviationZ (No longer online)

Slang (1 matching dictionary)

16. O.T.B, otb: Urban Dictionary

Sports (2 matching dictionaries)

17. OTB: Backgammon
18. O.T.B: Bicycle Glossary

Tech (1 matching dictionary)

19. Sweetwater Music (No longer online)

Definitions from Wiktionary (OTB) ▸ adjective:  (chess) Initialism of over-the-board. ▸ adjective:  (poker) Initialism of on the button. ▸ adjective:  (Internet slang) Initialism of on the bum/butt. Similar: pari mutuel, horseracing, parimutuel, horse racing, slot machine, wagering, cardroom, racetrack, jai alai, Thoroughbred racing, more... Opposite: in-house, on-site, on-premises Phrases: OTB Group, more... ▸ Words similar to otb ▸ Usage examples for otb ▸ Idioms related to otb ▸ Wikipedia articles (New!) ▸ Popular nouns described by otb ▸ Words that often appear near otb ▸ Rhymes of otb ▸ Invented words related to otb