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We found 53 dictionaries with English definitions that include the word on:
Click on the first link on a line below to go directly to a page where "on" is defined.

General (34 matching dictionaries)

1. ON, -on, on: Merriam-Webster.com [home, info]
2. ON, ON, -on, on: Oxford Learner's Dictionaries [home, info]
3. ON, on: American Heritage Dictionary of the English Language [home, info]
4. -on, on: Collins English Dictionary [home, info]
5. on: Vocabulary.com [home, info]
6. on: Macmillan Dictionary [home, info]
7. O'N, ON, On, On, o'n, on, on, on, on, on, on, on, on, on, on, oN: Wordnik [home, info]
8. on: Cambridge Advanced Learner's Dictionary [home, info]
9. ON, -on, on, on-: Wiktionary [home, info]
10. -on, on: Webster's New World College Dictionary, 4th Ed. [home, info]
11. -on, on: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. on: Infoplease Dictionary [home, info]
13. ON, -on, o.n, on: Dictionary.com [home, info]
14. on: Online Etymology Dictionary [home, info]
15. on: UltraLingua English Dictionary [home, info]
16. on: Cambridge Dictionary of American English [home, info]
17. on, on, on, on: Cambridge International Dictionary of Idioms [home, info]
18. ON (BTS song), ON (music), ON, On (Ancient Egypt), On (BTS and Sia song), On (BTS song), On (Boom Boom Satellites album), On (EP), On (Echobelly album), On (Elisa album), On (Gary Glitter album), On (Japanese prosody), On (band), On (biblical figure), On (novel), On (song), On: Wikipedia, the Free Encyclopedia [home, info]
19. on: Cambridge International Dictionary of Phrasal Verbs [home, info]
20. On: Online Plain Text English Dictionary [home, info]
21. on: Webster's Revised Unabridged, 1913 Edition [home, info]
22. on: Rhymezone [home, info]
23. on: AllWords.com Multi-Lingual Dictionary [home, info]
24. on: Webster's 1828 Dictionary [home, info]
25. ON, on: Stammtisch Beau Fleuve Acronyms [home, info]
26. on: Free Dictionary [home, info]
27. on: The Phrontistery - A Dictionary of Obscure Words [home, info]
28. on: Mnemonic Dictionary [home, info]
29. on: WordNet 1.7 Vocabulary Helper [home, info]
30. On, on: LookWAYup Translating Dictionary/Thesaurus [home, info]
31. ON: Dictionary/thesaurus [home, info]
32. on: Wikimedia Commons US English Pronunciations [home, info]

Art (1 matching dictionary)

33. on: Paris Cookbook [home, info]

Business (3 matching dictionaries)

34. On: MoneyGlossary.com [home, info]
35. On: Bloomberg Financial Glossary [home, info]
36. On (disambiguation), On: Financial dictionary [home, info]

Computing (1 matching dictionary)

37. On (disambiguation), on: Encyclopedia [home, info]

Medicine (3 matching dictionaries)

38. on: online medical dictionary [home, info]
39. ON: Multiple Sclerosis Encyclopaedia [home, info]
40. On (disambiguation), -on, o.n, on: Medical dictionary [home, info]

Miscellaneous (4 matching dictionaries)

41. On: Encyclopedia of the Orient [home, info]
42. ON: Acronym Finder [home, info]
43. ON: AbbreviationZ [home, info]
44. on: Idioms [home, info]

Religion (2 matching dictionaries)

45. On: Easton Bible [home, info]
46. On, On: Smith's Bible Dictionary [home, info]

Science (1 matching dictionary)

47. ON: A Dictionary of Quaternary Acronyms and Abbreviations [home, info]

Slang (2 matching dictionaries)

48. on: English slang and colloquialisms used in the United Kingdom [home, info]
49. On [the rocker], on: Urban Dictionary [home, info]

Tech (2 matching dictionaries)

50. ON: GEOGRAPHIC INFORMATION SYSTEMS, CARTOGRAPHY, AND REMOTE SENSING [home, info]
51. ON: AUTOMOTIVE TERMS [home, info]

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (on) ▸ adjective:  in operation or operational ("Left the oven on") ▸ adjective:  (of events) planned or scheduled ("The picnic is on, rain or shine") ▸ adverb:  indicates continuity or persistence or concentration ("His spirit lives on") ▸ adverb:  in a state required for something to function or be effective ("Turn the lights on") ▸ adverb:  with a forward motion ("We drove along admiring the view") ▸ name:  A surname (very rare: popularity rank in the U.S.: #28542) ▸ Word origin ▸ Words similar to on ▸ Usage examples for on ▸ Idioms related to on (New!) ▸ Popular nouns described by on ▸ Words that often appear near on ▸ Rhymes of on ▸ Invented words related to on