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jam

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verb

/dʒæm/

present tense
I/you/we/they	jam
he/she/it	jams
present participle	jamming
past tense	jammed
past participle	jammed

Other entries for this word

Related dictionary definitions

1
[transitive] to push someone or something somewhere using a lot of force
jam someone/something into/on/against something:
Marilyn jammed the hat firmly on her head and went out.
Mick jammed a copy of the report into my hand.
Kirsten was trying to jam all the papers into her bag.
Thesaurus entry for this meaning of jam
2
[transitive] [often passive] if people or things jam a place, there are so many of them that it is difficult to move
Thousands jammed the area to see the Pope.
jam something with something:
The streets were jammed with cars.
jam someone/something into something:
Four men were jammed into the back of the car.
Thesaurus entry for this meaning of jam
3
jam
or
jam up
[intransitive] if a machine, lock, window, etc. jams, it does not work because something stops it from moving
He fired one shot before his gun jammed.
Thesaurus entry for this meaning of jam
1. a.
  [transitive] to block something so that it stops working or moving
  A small stone had jammed the pump.
  Thesaurus entry for this meaning of jam
4
[intransitive/transitive] if a telephone system jams or is jammed, it stops working because too many people are making calls at the same time
Only a few minutes after the program, the switchboard was jammed with complaints.
Thesaurus entry for this meaning of jam
5
[transitive] to block a radio, television, or other electronic signal by broadcasting another signal on the same wavelength
Thesaurus entry for this meaning of jam
6
[transitive] to injure part of your body because it gets pressed or squeezed between two hard things
The window suddenly dropped down and jammed her finger.
Thesaurus entry for this meaning of jam
7
[intransitive] music informal to play music in an informal way with a group of people
Thesaurus entry for this meaning of jam

phrases

jam something down someone's throat
to tell someone something so many times that they cannot hear it again without getting upset or bored
Thesaurus entry for this meaning of jam
jam something open/shut
to make a door or window stay open or shut by pushing something under it or against it
There was no lock on the front door which had to be jammed shut at night with heavy furniture.
Thesaurus entry for this meaning of jam

phrasal verbs

This is the American English definition of jam. View British English definition of jam.

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