Tra từ jam - Từ điển Oxford Advanced Learner 8th

jam [jam jams jammed jamming] noun, verb BrE [dʒæm] NAmE [dʒæm]
noun

SWEET FOOD
1. uncountable, countable a thick sweet substance made by boiling fruit with sugar, often sold in ↑jars and spread on bread
•strawberry jam
•recipes for jams and preserves
• (BrE)a jam doughnut
compare ↑jelly, ↑marmalade

MANY PEOPLE/VEHICLES
2. countable a situation in which it is difficult or impossible to move because there are so many people or vehicles in one particular place
• The bus was delayed in a five-mile jam.
• As fans rushed to leave, jams formed at all the exits.
see also ↑traffic jam

MACHINE
3. countable a situation in which a machine does not work because sth is stuck in one position
•There's a paper jam in the photocopier.
more at money for jam/old rope at ↑money

Word Origin:
v. and n. senses 2 to 3 early 18th cent. ↑cramn. sense 1 mid 18th cent. ↑jam

Example Bank:
•We were stuck in a jam for an hour.
Idioms: ↑in a jam ▪ ↑jam on the brake ▪ ↑jam the brake on ▪ ↑jam tomorrow

verb (-mm-)

PUSH WITH FORCE
1. transitive ~ sth + adv./prep. to push sth somewhere with a lot of force
•He jammed his fingers in his ears.
•A stool had been jammed against the door.

STOP MOVING/WORKING
2. intransitive, transitive to become unable to move or work; to make sth do this
•~ (up) The photocopier keeps jamming up.
•~ sth (up) There's a loose part that keeps jamming the mechanism.
•+ adj. The valve has jammed shut.
•~ sth + adj. He jammed the door open with a piece of wood.

PUT INTO SMALL SPACE
3. transitive, intransitive to put sb/sth into a small space where there is very little room to move
Syn: ↑squash, Syn: ↑squeeze
•~ sb/sth + adv./prep. Six of us were jammed into one small car.
•We were jammed together like sardines in a can.
•The cupboards were jammed full of old newspapers.
•+ adv./prep. Nearly 1 000 students jammed into the hall.
see also ↑jam-packed

FILL WITH PEOPLE/THINGS
4. transitive ~ sth (up) (with sb/sth) to fill sth with a large number of people or things so that it is unable to function as it should
Syn: ↑block
•Viewers jammed the switchboard with complaints.

RADIO BROADCAST
5. transitive ~ sth (technical)to send out radio signals to prevent another radio broadcast from being heard

PLAY MUSIC
6. intransitive, transitive ~ (sth) to play music with other musicians in an informal way without preparing or practising first
Verb forms:

Word Origin:
v. and n. senses 2 to 3 early 18th cent. ↑cramn. sense 1 mid 18th cent. ↑jam

Example Bank:
•People constantly jammed the street.
•The airport was jammed with people trying to arrange flights.
•The room is jammed tight with furniture.
•The streets were completely jammed with traffic.
•The traffic was jammed solid in the city centre.
•The traffic will just jam up our village.
•We were jammed together shoulder to shoulder.