RAT

n. large long-tailed rodent that resembles a mouse; traitor, one who betrays, informer

v. betray an accomplice to police; abandon one's associates, desert one's colleagues

Remote Access TechnicianRam air turbineRadio access technologyRegister Alias TableRemote administration toolRemote access terminalRelease after transmission (Token ring)RAT - Robust Audio Tool for videoconferencing. An enhanced Mbone audio tool and a component of the SHRIMP Project Tools collection. Rock Abrasion Tool of the MER-A (Spirit) and MER-B (Opportunity) Mars rovers. Rough and Tumble - A martial art of South African origin
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This is an article about wild rats. For pet rats, see Fancy rat. For other uses, see Rat (disambiguation). Rats are various medium sized rodents. "True rats" are members of the genus Rattus, the most important of which to humans are the black rat, Rattus rattus, and the brown rat, R. norvegicus. Many members of other rodent genera and families are also called rats and share many characteristics with true rats. A rat has an average life span of 2-3 years[1].
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Noun
1. any of various long-tailed rodents similar to but larger than a mouse
(hypernym) rodent, gnawer, gnawing animal
(hyponym) pocket rat
2. someone who works (or provides workers) during a strike
(synonym) scab, strikebreaker, blackleg
(hypernym) worker
(derivation) scab, blackleg
3. 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) rotter, dirty dog, skunk, stinker, stinkpot, bum, puke, crumb, lowlife, scum bag, so-and-so, git
(hypernym) unpleasant person, disagreeable person
4. one who reveals confidential information in return for money
(synonym) informer, betrayer, squealer, blabber
(hypernym) informant, source
(hyponym) fink, snitch, snitcher, stoolpigeon, stoolie, sneak, sneaker, canary
(derivation) denounce, tell on, betray, give away, grass, shit, shop, snitch, stag
5. a pad (usually made of hair) worn as part of a woman's coiffure
(hypernym) pad
(part-holonym) hairdo, hair style, coiffure
Verb
1. desert one's party or group of friends, for example, for one's personal advantage
(hypernym) defect, desert
(derivation) rotter, dirty dog, skunk, stinker, stinkpot, bum, puke, crumb, lowlife, scum bag, so-and-so, git
2. employ scabs or strike breakers in
(hypernym) hire, engage, employ
(derivation) scab, strikebreaker, blackleg
(classification) industry, manufacture
3. take the place of work of someone on strike
(synonym) scab, blackleg
(hypernym) work, do work
(derivation) scab, strikebreaker, blackleg
4. give (hair) the appearance of being fuller by using a rat
(hypernym) pad, fill out
5. catch rats, especially with dogs
(hypernym) capture, catch
6. give away information about somebody; "He told on his classmate who had cheated on the exam"
(synonym) denounce, tell on, betray, give away, grass, shit, shop, snitch, stag
(hypernym) inform
(hyponym) sell out
(derivation) informer, betrayer, squealer, blabber

n. advice, counsel, consultation, counseling, recommendation; assembly, board, group of people (gathered to advise, plan, etc.)

v. advise, counsel, offer guidance, instruct; guess, solve

n. rat, large long-tailed rodent that resembles a mouse