jam meaning

[ dʒæm ] Pronunciation:   "jam" in a sentence
Verb: jam (jammed,jamming)  jam
  1. Press tightly together or cram
    - throng, mob, pack, pile 
  2. Push down forcibly
    "The driver jammed the brake pedal to the floor" 
  3. Crush or bruise
    "jam a toe"
    - crush 
  4. Interfere with or prevent the reception of signals
    "Jam the Voice of America"
    - block 
  5. Get stuck and immobilized
    "the mechanism jammed" 
  6. Crowd or pack to capacity
    - jampack, ram, chock up, cram, wad 
  7. Block passage through
    - obstruct, obturate, impede, occlude, block, close up
Noun: jam  jam
  1. Preserve of crushed fruit 
  2. Informal term for a difficult situation
    - fix, hole, mess, muddle, pickle, kettle of fish 
  3. A dense crowd of people
    - crush, press 
  4. Deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems
    - jamming, electronic jamming

Sounds like: jamb

Derived forms: jamming, jams, jammed

Type of: break up, bruise, conserve, conserves, contuse, crowd, crowd together, cut off, difficulty, disrupt, ECM, electronic countermeasures, force, hinder, impede, interrupt, malfunction, misfunction, preserve, preserves, push, stuff

Encyclopedia: Jam

[American slang]
n. a problem; trouble.
• I hear you're in a bad jam.
• Well, it's not a bad jam.

When a hitter gets a pitch near his hands, he is 'jammed'. Also when a pitcher gets himself in trouble, he is in a 'jam'

A condition on a network where two nodes transmitting simultaneously detect the collision and continue to transmit for a certain time (4 to 6 bytes on Ethernet) to ensure that the collision has been detected by all nodes involved.


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  1. the jam was up the hill above town.
  2. here the machines were liable to jam up.
  3. how am i going to get out of this jam?
  4. he was a little ahead in the jam.
  5. my golly, everything is in a jam.

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