labeling - Any word you use to call someone else. Can be about a group

Any word you use to call someone else. Can be about a group or how someone lives.

You call your annoying cousin a nerd. He calls you a dummy. You both are labeling each other.

A teacher says, 'You’re a slacker,' because you didn’t do your homework. That’s a label.

You say, 'You’re a fag,' and you’re just being a total idiot.