Meaning of jam in English
1. a thick sweet food that contains soft fruit and sugar, eaten on bread
strawberry jam
2. a situation in which it is difficult to move because there are so many vehicles on a road
I got caught in a traffic jam. ー I was stuck in a traffic jam.
1. press or push something into a small place roughly or forcibly
She jammed everything into her suitcase.
2. make or become blocked by a lot of people, cars, logs etc. so that the movement or flow in a passage etc. difficult or impossible