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We found 43 dictionaries with English definitions that include the word hum:
Click on the first link on a line below to go directly to a page where "hum" is defined.

General (31 matching dictionaries)

1. hum: Merriam-Webster.com [home, info]
2. hum, hum: Oxford Learner's Dictionaries [home, info]
3. hum: American Heritage Dictionary of the English Language [home, info]
4. hum: Collins English Dictionary [home, info]
5. HUM, hum: Vocabulary.com [home, info]
6. hum, hum, hum: Macmillan Dictionary [home, info]
7. Hum, hum: Wordnik [home, info]
8. hum: Cambridge Advanced Learner's Dictionary [home, info]
9. Hum, hum: Wiktionary [home, info]
10. hum: Webster's New World College Dictionary, 4th Ed. [home, info]
11. hum: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. hum: Infoplease Dictionary [home, info]
13. hum: Dictionary.com [home, info]
14. hum: Online Etymology Dictionary [home, info]
15. hum: UltraLingua English Dictionary [home, info]
16. hum: Cambridge Dictionary of American English [home, info]
17. hum: Cambridge International Dictionary of Idioms [home, info]
18. Hum (band), Hum (disambiguation), Hum (film), Hum (sound), Hum, The Hum (Hookworms album), The Hum (O'Hooley & Tidow album), The Hum (Spring King song), The Hum, The hum: Wikipedia, the Free Encyclopedia [home, info]
19. Hum: Online Plain Text English Dictionary [home, info]
20. hum: Webster's Revised Unabridged, 1913 Edition [home, info]
21. hum: Rhymezone [home, info]
22. hum: AllWords.com Multi-Lingual Dictionary [home, info]
23. hum: Webster's 1828 Dictionary [home, info]
24. Hum: Stammtisch Beau Fleuve Acronyms [home, info]
25. hum: Free Dictionary [home, info]
26. hum: Mnemonic Dictionary [home, info]
27. hum: WordNet 1.7 Vocabulary Helper [home, info]
28. hum: LookWAYup Translating Dictionary/Thesaurus [home, info]
29. hum: Dictionary/thesaurus [home, info]

Art (2 matching dictionaries)

30. Hum: Virginia Tech Multimedia Music Dictionary [home, info]
31. hum-, hum-: A Cross Reference of Latin and Greek Elements [home, info]

Computing (1 matching dictionary)

32. Hum (disambiguation), The Hum, hum: Encyclopedia [home, info]

Medicine (2 matching dictionaries)

33. hum: online medical dictionary [home, info]
34. Hum (disambiguation), hum: Medical dictionary [home, info]

Miscellaneous (4 matching dictionaries)

35. HUM: Acronym Finder [home, info]
36. HUM: Three Letter Words with definitions [home, info]
37. HUM: AbbreviationZ [home, info]
38. hum: Idioms [home, info]

Slang (2 matching dictionaries)

39. hum: English slang and colloquialisms used in the United Kingdom [home, info]
40. H.U.M, Hum: Urban Dictionary [home, info]

Tech (1 matching dictionary)

41. Hum: Sweetwater Music [home, info]

(Note: See hums for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (hum) ▸ noun:  a humming noise ("The hum of distant traffic") ▸ noun:  an Islamic fundamentalist group in Pakistan that fought the Soviet Union in Afghanistan in the 1980s; now operates as a terrorist organization primarily in Kashmir and seeks Kashmir's accession by Pakistan ▸ noun:  the state of being or appearing to be actively engaged in an activity ("There is a constant hum of military preparation") ▸ verb:  sound with a monotonous hum ▸ verb:  be noisy with activity ▸ verb:  sing with closed lips ("She hummed a melody") ▸ verb:  make a low continuous sound ("The refrigerator is humming") ▸ name:  A surname (very rare: popularity rank in the U.S.: #56600) ▸ Also see hums ▸ Word origin ▸ Words similar to hum ▸ Usage examples for hum ▸ Idioms related to hum (New!) ▸ Popular adjectives describing hum ▸ Words that often appear near hum ▸ Rhymes of hum ▸ Invented words related to hum