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We found 66 dictionaries with English definitions that include the word jam:
Click on the first link on a line below to go directly to a page where "jam" is defined.

General (35 matching dictionaries)

1. jam: Merriam-Webster.com [home, info]
2. Jam, jam, jam, jam: Oxford Learner's Dictionaries [home, info]
3. jam, jam: American Heritage Dictionary of the English Language [home, info]
4. Jam, jam: Collins English Dictionary [home, info]
5. jam: Vocabulary.com [home, info]
6. jam, jam: Macmillan Dictionary [home, info]
7. Jam, jam: Wordnik [home, info]
8. jam: Cambridge Advanced Learner's Dictionary [home, info]
9. Jam, jam: Wiktionary [home, info]
10. jam: Webster's New World College Dictionary, 4th Ed. [home, info]
11. jam: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. jam: Infoplease Dictionary [home, info]
13. Jam, Jam, jam: Dictionary.com [home, info]
14. jam (n.), jam (v.): Online Etymology Dictionary [home, info]
15. jam: UltraLingua English Dictionary [home, info]
16. jam: Cambridge Dictionary of American English [home, info]
17. jam: Cambridge International Dictionary of Idioms [home, info]
18. JAM, JAM, Jam (Michael Jackson song), Jam (TV series), Jam (Turn It Up), Jam (album), Jam (disambiguation), Jam (film), Jam (music), Jam (novel), Jam (song), Jam (tv series), Jam, Jam, The Jam (Comics), The Jam (band), The Jam (production team), The Jam, The jam: Wikipedia, the Free Encyclopedia [home, info]
19. Jam: Online Plain Text English Dictionary [home, info]
20. jam: Webster's Revised Unabridged, 1913 Edition [home, info]
21. jam: Free Dictionary [home, info]
22. jam: Mnemonic Dictionary [home, info]
23. jam: WordNet 1.7 Vocabulary Helper [home, info]
24. jam: LookWAYup Translating Dictionary/Thesaurus [home, info]
25. Jam, jam: Dictionary/thesaurus [home, info]
26. jam: Wikimedia Commons US English Pronunciations [home, info]
27. jam: Rhymezone [home, info]
28. jam, jam (de): AllWords.com Multi-Lingual Dictionary [home, info]
29. jam: Webster's 1828 Dictionary [home, info]
30. Jam: Britih-American Dictionary [home, info]
31. JAM: Stammtisch Beau Fleuve Acronyms [home, info]
32. jam: All About Homonyms [home, info]
33. Jam: Merriam-Webster.com [home, info]

Art (3 matching dictionaries)

34. Jam: Cooking Dictionary [home, info]
35. Jam: Jazz Humor [home, info]
36. jam: Epicurus.com Spanish Glossary [home, info]

Business (1 matching dictionary)

37. jam: Legal dictionary [home, info]

Computing (5 matching dictionaries)

38. JaM, jam: Free On-line Dictionary of Computing [home, info]
39. JAM: Netlingo [home, info]
40. JAM: SMS Dictionary [home, info]
41. Jam (music), jam: Encyclopedia [home, info]
42. JAM: CCI Computer [home, info]

Medicine (2 matching dictionaries)

43. JaM, jam: online medical dictionary [home, info]
44. jam: Medical dictionary [home, info]

Miscellaneous (5 matching dictionaries)

45. JAM: Acronym Finder [home, info]
46. JAM: Three Letter Words with definitions [home, info]
47. JAM: AbbreviationZ [home, info]
48. jam: Idioms [home, info]
49. Jam: Brilliant Dream Dictionary [home, info]

Science (3 matching dictionaries)

50. JAM: Cytokines & Cells Online Pathfinder Encyclopaedia [home, info]
51. Jam: Archaeology Wordsmith [home, info]
52. Jam: A Glossary of Mathematical Terms [home, info]

Slang (6 matching dictionaries)

53. Jam: Street Terms: Drugs and the Drug Trade [home, info]
54. jam: The Folk File [home, info]
55. Jam: 1960's Slang [home, info]
56. jam: ESL Slang page [home, info]
57. Jam: Twists, Slugs and Roscoes: Hardboiled Slang [home, info]
58. Jam: Totally Unofficial Rap [home, info]

Sports (5 matching dictionaries)

59. Jam, jam: Hickok Sports Glossaries [home, info]
60. Jam: 2060 Shadow-Slang [home, info]
61. Jam: Poker Terms [home, info]
62. Jam: Dan's Poker [home, info]
63. Jam: Croquet [home, info]

Tech (1 matching dictionary)

64. Jam: AUTOMOTIVE TERMS [home, info]

(Note: See jams for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (jam) ▸ noun:  preserve of crushed fruit ▸ noun:  a dense crowd of people ▸ noun:  deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems ▸ noun:  informal terms for a difficult situation ▸ verb:  interfere with or prevent the reception of signals ("Jam the Voice of America") ▸ verb:  crush or bruise ("Jam a toe") ▸ verb:  crowd or pack to capacity ("The theater was jampacked") ▸ verb:  get stuck and immobilized ("The mechanism jammed") ▸ verb:  push down forcibly ("The driver jammed the brake pedal to the floor") ▸ verb:  press tightly together or cram ▸ verb:  block passage through ▸ Also see jams ▸ Word origin ▸ Words similar to jam ▸ Usage examples for jam ▸ Idioms related to jam (New!) ▸ Popular adjectives describing jam ▸ Words that often appear near jam ▸ Rhymes of jam ▸ Invented words related to jam