Definition: Meaning of, jam in English to English dictionary.
Pronunciation:/ dʒam /
noun
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Word Forms:
Singular
Plural
jam
jams
food[uncountable and countable] a thick sweet substance made from boiled fruit and sugar, eaten especially on bread [↪ jelly]
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cars/people[countable] a situation in which it is difficult or impossible to move because there are so many cars or people
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machine[countable] a situation in which a machine does not work because something is stopping a part from moving
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difficult situation[countable usually singular]informal a difficult situation
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music[countable] a JAM SESSION
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music[countable] a song or piece of music, especially one by a RAP or ROCK group
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kick out the jamsAmerican Englishinformal to play ROCK MUSIC loudly and with a lot of energy or emotion
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jam tomorrowBritish Englishinformal good things someone promises you, which never happen
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verb
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Word Forms:
Prsesent
Past
Past Participle
jam
jammed
jammed
Present Participle
Third Person Singular
jamming
jams
push hard[transitive always + adverb/preposition] to push something somewhere using a lot of force, until it can move no further
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machine[intransitive and transitive]also jam up if a moving part of something jams, or if you jam it, it no longer works properly because something is preventing it from moving
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block[intransitive and transitive]also jam up if a lot of people or vehicles jam a place, they fill it so that it is difficult to move [= cram]
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music[intransitive]also jam out to play music in an informal way with other people
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jam on the brakes to slow down a car suddenly by putting your foot down hard on the BRAKE
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jam somebody's/the switchboard if telephone calls jam the switchboard of an organization, so many people are phoning the organization that it cannot deal with them all
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radio[transitive] to deliberately prevent broadcasts or other electronic signals from being received, by broadcasting signals on the same WAVELENGTH
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somebody is jammingAmerican Englishspoken used to say that someone is doing something very quickly or well