to press something so hard that it breaks or is damaged:
His leg was crushed in the accident.
Two people were crushed to death in the rush to escape.
to press something in order to break it into very small pieces or into a powder:
Crush two cloves of garlic.
to use severe methods to stop people from fighting you or opposing you [= put down]:
The revolution was crushed within days.
to make someone lose all hope, confidence etc
to make someone feel extremely upset or shocked:
Sara was crushed by their insults.
crush on somebodyphrasal verb
a guy in my class that I'm crushing on