rat

US /ræt/

UK /ræt/

B1
n. (c.)Countable NounLong-tailed rodent similar to/bigger than a mouse
The rat came out of its hole to look for food, but the cat saw it first
n. (c.)Countable NounPerson who is not loyal and reveals secrets
We have a rat in our department who informed the boss about our party

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