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English definition of “jam”

jam

verb [T + adv/prep] (FILL)    /dʒæm/ (-mm-)
C1 to fill a place completely: The centre of town was jammed with cars moving at a very slow pace. The motorway was jammed solid (= the traffic could not move) all morning.
(Definition of jam verb (FILL) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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