· any of various long-tailed rodents similar to but larger than a mouse

Hypernym(s): rodent, gnawer

· someone who works (or provides workers) during a strike

Synonym(s): scab, strikebreaker, blackleg

Hypernym(s): worker

· 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'"

Synonym(s): rotter, dirty_dog, skunk, stinker, stinkpot, bum, puke, crumb, lowlife, scum_bag, so-and-so, git

Hypernym(s): unpleasant_person, disagreeable_person

· one who reveals confidential information in return for money

Synonym(s): informer, betrayer, squealer, blabber

Hypernym(s): informant, source

· a pad (usually made of hair) worn as part of a woman's coiffure

Hypernym(s): pad

· desert one's party or group of friends, for example, for one's personal advantage

Hypernym(s): defect, desert

· employ scabs or strike breakers in

Hypernym(s): hire, engage, employ

· take the place of work of someone on strike

Synonym(s): fink, scab, blackleg

Hypernym(s): work, do_work

· give (hair) the appearance of being fuller by using a rat

Hypernym(s): pad, fill_out

· catch rats, especially with dogs

Hypernym(s): capture, catch

· give away information about somebody; "He told on his classmate who had cheated on the exam"

Synonym(s): denounce, tell_on, betray, give_away, grass, shit, shop, snitch, stag

Hypernym(s): inform