jam

noun

  1. 1

    deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems

  2. 2

    preserve of crushed fruit

  3. 3

    a dense crowd of people

  4. 4

    informal terms for a difficult situation

    he got into a terrible fix

    he made a muddle of his marriage

verb

  1. 1

    interfere with or prevent the reception of signals

    Jam the Voice of America

    block the signals emitted by this station

  2. 2

    block passage through

    obstruct the path

  3. 3

    crush or bruise

    jam a toe

  4. 4

    crowd or pack to capacity

    the theater was jampacked

  5. 5

    get stuck and immobilized

    the mechanism jammed

  6. 6

    push down forcibly

    The driver jammed the brake pedal to the floor

  7. 7

    press tightly together or cram

    The crowd packed the auditorium

Synonyms

Also useful for “jam”:Scrabble