rat Meaning in the Cambridge English Dictionary
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Meaning of “rat” in the English Dictionary

"rat" in British English

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ratnoun [C]

uk   us   /ræt/

rat noun [C] (ANIMAL)

A2 a ​small rodent , ​larger than a ​mouse, that has a ​longtail and is ​considered to be ​harmful: Rats ​carrydisease. I ​think we've got rats (= there are rats in ​ourhouse).
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rat noun [C] (PERSON)

informal an ​unpleasantperson who ​deceivesothers or is not ​loyal
(Definition of rat from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"rat" in American English

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ratnoun [C]

 us   /ræt/

rat noun [C] (ANIMAL)

a ​smallanimal that ​looks like a ​largemouse: A rat was ​sniffing around the ​trash.

rat noun [C] (PERSON)

infml an ​unpleasantperson who ​deceives or is not ​loyal
(Definition of rat from the Cambridge Academic Content Dictionary © Cambridge University Press)
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