Definition of "rat"
- noun
A medium-sized rodent belonging to the genus Rattus.
A term indiscriminately applied to numerous members of several rodent families (e.g. voles and mice) having bodies longer than about 12 cm, or 5 inches.
A person who is known for betrayal; a scoundrel; a quisling.
An informant or snitch.
- verb
To betray someone and tell their secret to an authority or an enemy; to turn someone in, bewray.
To kill rats.
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