What does "get even" mean?

To inflict trouble or harm on another in return, typically the same as that inflicted on oneself.

What is a synonym for "get even"?

Common synonyms include: equalise, equalize, get back.

verb, slang

verb, slang ·Moderate ·College level

Verb

1
To inflict trouble or harm on another in return, typically the same as that inflicted on oneself. idiomatic, informal
"But I warn you, Anita, we're through. I'm through with all of you! I'll get even. Just wait! You'll be sorry! You fools! You...YOU IDIOTS!"
2
compensate; make the score equal wordnet
3
take revenge or even out a score wordnet

"But I warn you, Anita, we're through. I'm through with all of you! I'll get even. Just wait! You'll be sorry! You fools! You...YOU IDIOTS!"