jam meaning and definition

JAM noun

Definition of jam (noun)

1. preserve of crushed fruit
2. informal terms for a difficult situation
   • "he got into a terrible fix"; "he made a muddle of his marriage"
   • synonyms: fix, hole, kettle of fish, mess, muddle, pickle
3. a dense crowd of people
   • synonyms: crush, press
4. deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems
   • synonyms: electronic jamming, jamming

JAM verb

Definition of jam (verb)

1. press tightly together or cram
   • "The crowd packed the auditorium"
   • synonyms: mob, pack, pile, throng
2. push down forcibly
   • "The driver jammed the brake pedal to the floor"
3. crush or bruise
   • "jam a toe"
   • synonyms: crush
4. interfere with or prevent the reception of signals
   • "Jam the Voice of America"; "block the signals emitted by this station"
   • synonyms: block
5. get stuck and immobilized
   • "the mechanism jammed"
6. crowd or pack to capacity
   • "the theater was jampacked"
   • synonyms: chock up, cram, jampack, ram, wad
7. block passage through
   • "obstruct the path"
   • synonyms: block, close up, impede, obstruct, obturate, occlude
   • antonym: disengage