Longman Dictionary of Contemporary English homepage

jam

1 noun
     
jam
Related topics: Food Dish
jam1
1

food

[uncountable and countable]DFF a thick sweet substance made from boiled fruit and sugar, eaten especially on bread [↪ jelly]:
strawberry jam
a jam sandwich
jam jars
2

cars/people

[countable] a situation in which it is difficult or impossible to move because there are so many cars or people:
Sorry we're late. We got stuck in a traffic jam.
3

machine

[countable] a situation in which a machine does not work because something is stopping a part from moving:
It caused a jam in the printer.
4

difficult situation

[countable usually singular] informal a difficult situation
We became friends after he helped me out of a jam.
5

music

[countable]
a) a jam session
b) a song or piece of music, especially one by a rap or rock group
6

kick out the jams

American English informal to play rock music loudly and with a lot of energy or emotion:
Make no mistake - these guys know how to kick out the jams.
7

jam tomorrow

British English informal good things someone promises you, which never happen:
There is an element of 'jam tomorrow' about some of the government's policies.

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