a crowd of people pressed so close together that it is difficult for them to move:
There's always such a crush on the train in the mornings.
a strong feeling of romantic love for someone, especially one that a young person has for someone older who they do not know well [↪ infatuation]:
She had a huge crush on her geography teacher.
It's just a schoolgirl crush.
3 [countable] American English informal
someone who you have a feeling of romantic love for, but who you do not know well:
a first date with your crush