'Jam' definitions:

Definition of 'jam'

From: WordNet
noun
Preserve of crushed fruit
noun
Informal terms for a difficult situation; "he got into a terrible fix"; "he made a muddle of his marriage" [syn: fix, hole, jam, mess, muddle, pickle, kettle of fish]
noun
A dense crowd of people [syn: crush, jam, press]
noun
Deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems [syn: jamming, electronic jamming, jam]
verb
Press tightly together or cram; "The crowd packed the auditorium" [syn: throng, mob, pack, pile, jam]
verb
Push down forcibly; "The driver jammed the brake pedal to the floor"
verb
Crush or bruise; "jam a toe" [syn: jam, crush]
verb
Interfere with or prevent the reception of signals; "Jam the Voice of America"; "block the signals emitted by this station" [syn: jam, block]
verb
Get stuck and immobilized; "the mechanism jammed"
verb
Crowd or pack to capacity; "the theater was jampacked" [syn: jam, jampack, ram, chock up, cram, wad]
verb
Block passage through; "obstruct the path" [syn: obstruct, obturate, impede, occlude, jam, block, close up] [ant: disengage, free]

Definition of 'Jam'

From: GCIDE
  • Jam \Jam\, n. (Mining) See Jamb. [1913 Webster]

Definition of 'Jam'

From: GCIDE
  • Jam \Jam\, v. t. [imp. & p. p. Jammed (j[a^]md); p. pr. & vb. n. Jamming.] [Either fr. jamb, as if squeezed between jambs, or more likely from the same source as champ See Champ.] [1913 Webster]
  • 1. To press into a close or tight position; to crowd; to squeeze; to wedge in; to cram; as, rock fans jammed the theater for the concert. [1913 Webster]
  • The ship . . . jammed in between two rocks. --De Foe. [1913 Webster]
  • 2. To crush or bruise; as, to jam a finger in the crack of a door. [Colloq.] [1913 Webster]
  • 3. (Naut.) To bring (a vessel) so close to the wind that half her upper sails are laid aback. --W. C. Russell. [1913 Webster]
  • 4. To block or obstruct by packing too much (people or objects) into; as, shoppers jammed the aisles during the fire sale. [PJC]
  • 5. (Radio) To interfere with (a radio signal) by sending other signals of the same or nearby frequency; as, the Soviets jammed Radio Free Europe broadcasts for years during the cold war. [PJC]
  • 6. To cause to become nonfunctional by putting something in that blocks the movement of a part or parts; as, he jammed the drawer by putting in too many loose papers; he jammed the lock by trying to pick it. [PJC]

Definition of 'Jam'

From: GCIDE
  • Jam \Jam\ (j[a^]m), n. [Per. or Hind. j[=a]mah garment, robe.] A kind of frock for children. [1913 Webster]

Definition of 'Jam'

From: GCIDE
  • Jam \Jam\, v. i.
  • 2. To become stuck so as not to function; as, the copier jammed again. [PJC]
  • 2. (Music) To play an instrument in a jam session. [PJC]
  • 3. To crowd together; -- usually used with together or in; as, fifty people jammed into a conference room designed for twenty. [PJC]

Definition of 'Jam'

From: GCIDE
  • Jam \Jam\, n.
  • 1. A mass of people or objects crowded together; also, the pressure from a crowd; a crush; as, a jam in a street; a jam of logs in a river. [1913 Webster]
  • 2. An injury caused by jamming. [Colloq.] [1913 Webster]
  • 3. A difficult situation; as, he got himself into a jam. [informal] [PJC]

Definition of 'Jam'

From: GCIDE
  • Jam \Jam\, n. [Prob. fr. jam, v.; but cf. also Ar. jamad ice, jelly, j[=a]mid congealed, jamd congelation, ice.] A preserve of fruit boiled with sugar and water; also called jelly; as, raspberry jam; currant jam; grape jam. [1913 Webster]
  • Jam nut. See Check nut, under Check.
  • Jam weld (Forging), a butt weld. See under Butt. [1913 Webster]

Synonyms of 'jam'

From: Moby Thesaurus