rat
US /ræt/
UK /ræt/

1.
rata
a rodent larger than a mouse, typically having a pointed snout and a long, hairless tail.
:
•
A large rat scurried across the alley.
Una gran rata corrió por el callejón.
•
The old building was infested with rats.
El edificio antiguo estaba infestado de ratas.
2.
rata, traidor
a person who deserts their friends or associates, especially in a time of trouble.
:
•
He's a real rat for abandoning his team when they needed him most.
Es una verdadera rata por abandonar a su equipo cuando más lo necesitaban.
•
Don't trust him, he's a known rat.
No confíes en él, es una rata conocida.