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

General (34 matching dictionaries)

1. Main, main: Merriam-Webster.com [home, info]
2. Main, main, main, the main: Oxford Learner's Dictionaries [home, info]
3. Main, main: American Heritage Dictionary of the English Language [home, info]
4. main: Collins English Dictionary [home, info]
5. main: Vocabulary.com [home, info]
6. main, main: Macmillan Dictionary [home, info]
7. Main, main: Wordnik [home, info]
8. main: Cambridge Advanced Learner's Dictionary [home, info]
9. Main, main: Wiktionary [home, info]
10. main: Webster's New World College Dictionary, 4th Ed. [home, info]
11. main: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. main: Infoplease Dictionary [home, info]
13. Main, main: Dictionary.com [home, info]
14. main (adj.), main (n.): Online Etymology Dictionary [home, info]
15. Main, main: UltraLingua English Dictionary [home, info]
16. main: Cambridge Dictionary of American English [home, info]
17. main: Cambridge International Dictionary of Idioms [home, info]
18. Ma'in, Main (CTA Niles Center station), Main (band), Main (cigarette), Main (river), Main (surname), Main, The Main: Wikipedia, the Free Encyclopedia [home, info]
19. Main: Online Plain Text English Dictionary [home, info]
20. main: Webster's Revised Unabridged, 1913 Edition [home, info]
21. main: Rhymezone [home, info]
22. main, main (f): AllWords.com Multi-Lingual Dictionary [home, info]
23. main: Webster's 1828 Dictionary [home, info]
24. main: All About Homonyms [home, info]
25. Main: 1911 edition of the Encyclopedia Britannica [home, info]
26. main: Free Dictionary [home, info]
27. main: The Phrontistery - A Dictionary of Obscure Words [home, info]
28. main: Mnemonic Dictionary [home, info]
29. main: WordNet 1.7 Vocabulary Helper [home, info]
30. Main, main: LookWAYup Translating Dictionary/Thesaurus [home, info]
31. Main: Dictionary/thesaurus [home, info]
32. main: Wikimedia Commons US English Pronunciations [home, info]

Art (1 matching dictionary)

33. Main: Virginia Tech Multimedia Music Dictionary [home, info]

Business (2 matching dictionaries)

34. Main: Construction Term Glossary [home, info]
35. Main (river, Germany), main: Legal dictionary [home, info]

Computing (2 matching dictionaries)

36. main: Free On-line Dictionary of Computing [home, info]
37. Main (river, Germany), main: Encyclopedia [home, info]

Medicine (1 matching dictionary)

38. main: online medical dictionary [home, info]

Miscellaneous (4 matching dictionaries)

39. main: Sound-Alike Words [home, info]
40. MAIN: Acronym Finder [home, info]
41. MAIN: AbbreviationZ [home, info]
42. main: Idioms [home, info]

Slang (2 matching dictionaries)

43. main: The Folk File [home, info]
44. Ma'in, main: Urban Dictionary [home, info]

Sports (1 matching dictionary)

45. Main: Skydiving Glossary [home, info]

Tech (3 matching dictionaries)

46. Main: AUTOMOTIVE TERMS [home, info]
47. MAIN: Lake and Water Word Glossary [home, info]
48. main: SeaTalk Dictionary of English Nautical Language [home, info]

(Note: See mains for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (main) ▸ noun:  a principal pipe in a system that distributes water or gas or electricity or that collects sewage ▸ noun:  any very large body of (salt) water ▸ name:  A surname (common: 1 in 20000 families; popularity rank in the U.S.: #2342) ▸ Also see mains ▸ Word origin ▸ Words similar to main ▸ Usage examples for main ▸ Idioms related to main (New!) ▸ Popular adjectives describing main ▸ Words that often appear near main ▸ Rhymes of main ▸ Invented words related to main