rat

IPA: rˈæt

noun

  • (zoology) A medium-sized rodent belonging to the genus Rattus.
  • (informal) Any of the numerous members of several rodent families (e.g. voles and mice) that resemble true rats in appearance, usually having a pointy snout, a long, bare tail, and body length greater than about 12 cm, or 5 inches.
  • (informal) A person who is known for betrayal; a scoundrel; a quisling.
  • (informal) An informant or snitch.
  • (informal) A scab: a worker who acts against trade union policies.
  • (slang) A person who routinely spends time at a particular location.
  • A wad of shed hair used as part of a hairstyle.
  • A roll of material used to puff out the hair, which is turned over it.
  • (UK, north-west London, slang, vulgar) Vagina.
  • (regional) A scratch or a score.
  • (nautical, regional) A place in the sea with rapid currents and crags where a ship is likely to be torn apart in stormy weather.
  • (military, slang) A ration.
  • The first of the 12-year cycle of animals which appear in the Chinese zodiac related to the Chinese calendar.
  • (chiefly informal) Short for muskrat. [A large aquatic rodent (Ondatra zibethicus).]
  • (medicine, countable) Initialism of rapid antigen test. [(medicine) A fast-acting chromatographic immunoassay for the detection of specific antigens.]
  • (aviation, countable) Initialism of ram air turbine. [(aviation) A small wind turbine mounted on an aircraft and used to generate electrical or hydraulic power from the force of air moving past the aircraft.]
  • (computing, countable) Initialism of remote-access Trojan.
  • (philosophy, uncountable) Initialism of relevant alternatives theory.

verb

  • (of a dog, etc.) To hunt or kill rats.
  • (intransitive) To betray a political party, cause or principle; to betray someone, to desert a person or thing.
  • (informal, intransitive) To work as a scab, going against trade union policies.
  • (chiefly US) To backcomb (hair).
  • (intransitive, with on or out) To inform on someone; to betray someone to the police or authorities.
  • (regional) To scratch or score.
  • (regional, rare, obsolete) To tear, rip, rend.
  • Damn, drat, blast; used in oaths.
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Examples of "rat" in Sentences

  • Mariah was a rag-shaking terrier, who had only to hear the word rat to start digging.
  • The most distinguished bankers in Paris take part in this affair; not fictitiously, as in some shameful speculations which I call rat-traps.
  • Well, no – the physical determinist would say that the rat is always physically constrained, just like everything else, because there is no other way to be.
  • What they're trying to do is shut this area off so that the insurgents cannot move through what they call rat lines into Baghdad and into al Anbar Province.
  • Mr Quirk said he did not doubt fishermen's accounts that they saw at least one bulk carrier a day using what they called rat-run shortcuts through the reef.
  • Aiguy: Well, no – the physical determinist would say that the rat is always physically constrained, just like everything else, because there is no other way to be.
  • I felt in my soul that the rat -- yes, the _rat_, the RAT I had just seen, was that evil being in masquerade, and rambling through the house upon some infernal night lark.

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synonyms for ratdescribing words for rat
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