- 1[uncountable, countable] a thick sweet food made by boiling fruit with sugar, often sold in jars and spread on bread strawberry jam recipes for jams and preserves compare jelly, marmalade
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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 traffic jam
- 3[countable] a situation in which a machine does not work because something is stuck in one position There's a paper jam in the photocopier. Idioms
sweet food
to be in a difficult situation
Check pronunciation: jam