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Noun jam has 4 senses
  1. jam - preserve of crushed fruit
    --1 is a kind of     conserve, preserve, conserves, preserves
    --1 has particulars: strawberry jam, strawberry preserves
  2. fix, hole, jam, mess, muddle, pickle, kettle of fish - informal terms for a difficult situation; "he got into a terrible fix"; "he made a muddle of his marriage"
    --2 is a kind of difficulty
    --2 has particulars: dog's breakfast, dog's dinner
  3. crush, jam, press - a dense crowd of people
    --3 is a kind of crowd
    --3 has particulars: traffic jam, snarl-up
    Derived form: verb jam6
  4. jamming, electronic jamming, jam - deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems
    --4 is a kind of electronic countermeasures, ECM
    --4 has particulars: barrage jamming; spot jamming, selective jamming
    Derived form: verb jam4
,Verb jam has 7 senses
  1. throng, mob, pack, pile, jam - press tightly together or cram; "The crowd packed the auditorium"
    --1 is one way to crowd, crowd together
    Sample sentence:
    Somebody ----s PP
  2. jam - push down forcibly; "The driver jammed the brake pedal to the floor"
    --2 is one way to     push, force
    Sample sentences:
    Somebody ----s something
    Something ----s something
  3. jam, crush - crush or bruise; "jam a toe"
    --3 is one way to bruise, contuse
    Sample sentence:
    Did he jam his foot?
  4. jam, block - interfere with or prevent the reception of signals; "Jam the Voice of America"; "block the signals emitted by this station"
    --4 is one way to interrupt, disrupt, break up, cut off
    Derived forms: noun jam4, noun jamming1
    Sample sentences:
    Somebody ----s something
    Something ----s something
  5. jam - get stuck and immobilized; "the mechanism jammed"
    --5 is one way to     malfunction, misfunction
    Sample sentence:
    They want to jam the doors
  6. jam, jampack, ram, chock up, cram, wad - crowd or pack to capacity; "the theater was jampacked"
    --6 is one way to stuff
    Derived form: noun jam3
    Sample sentence:
    They jam the books into the box
  7. obstruct, obturate, impede, occlude, jam, block, close up - block passage through; "obstruct the path"
    --7 is one way to impede, hinder
    Sample sentences:
    Somebody ----s something
    Something ----s something
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