1. [Noun]: preserve of crushed fruit

2. [Noun]: informal terms for a difficult situation; "he got into a terrible fix"; "he made a muddle of his marriage"

3. [Noun]: deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems

4. [Noun]: a dense crowd of people

5. [Verb]: block passage through; "obstruct the path"

6. [Verb]: crowd or pack to capacity; "the theater was jampacked"

7. [Verb]: push down forcibly; "The driver jammed the brake pedal to the floor"

8. [Verb]: interfere with or prevent the reception of signals; "Jam the Voice of America"; "block the signals emitted by this station"

9. [Verb]: crush or bruise; "jam a toe"

10. [Verb]: get stuck and immobilized; "the mechanism jammed"

11. [Verb]: press tightly together or cram; "The crowd packed the auditorium"

Opposite words to 'jam'

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