Synonyms of RAT

What is another word for RAT
1.

Synonyms of RAT

noun - someone who works (or provides workers) during a strike

noun - a person who is deemed to be despicable or contemptible

SO 
GIT 

noun - one who reveals confidential information in return for money

verb - take the place of work of someone on strike

verb - give away information about somebody

TELL ON 
2.

Synonyms of RAT