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English definition of “jam”

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jam

verb
 
 
/dʒæm/ ( present participle jamming, past tense and past participle jammed)
jam sth in/into/on, etc to push something somewhere firmly and tightly: She jammed her hands into her pockets.Inserting and forcing things into other thingsFilling and completing
STUCK [I, T] to get stuck or make something get stuck: The machine keeps jamming.Not functioning
FILL [T] to fill a place completely: [often passive] The streets were jammed with cars.Filling and completing
STOP RADIO [T] to send a signal that stops a radio being able to broadcastRadioPreventing and impedingLimiting and restricting
(Definition of jam verb from the Cambridge Learners Dictionary © Cambridge University Press)
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