noun
a small rodent with a long tail, known for being a pest in many urban areas
-
The scientist conducted a study on the behavior of the rat in a controlled environment.
-
I saw a rat scurrying across the street last night.
-
That guy is such a rat, always trying to cheat his way out of things.
-
She felt like a rat trapped in a maze, unable to find her way out of the complicated situation.