1. (noun)rat any of various long-tailed rodents similar to but larger than a mouse
2. (noun)scab, strikebreaker, blackleg, rat someone who works (or provides workers) during a strike
3. (noun)rotter, dirty dog, rat, skunk, stinker, stinkpot, bum, puke, crumb, lowlife, scum bag, so-and-so, git a person who is deemed to be despicable or contemptible "only a rotter would do that"; "kill the rat"; "throw the bum out"; "you cowardly little pukes!"; "the British call a contemptible person a `git'"
4. (noun)informer, betrayer, rat, squealer, blabber one who reveals confidential information in return for money
5. (noun)rat a pad (usually made of hair) worn as part of a woman's coiffure
11. (verb)denounce, tell on, betray, give away, rat, grass, shit, shop, snitch, stag give away information about somebody "He told on his classmate who had cheated on the exam"
Definition of 'rat'
