Is “Rat” a Scrabble word?
Yes
RAT
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Rat
/ɹæt/
noun
1.A medium-sized rodent belonging to the genus Rattus.
2.Any of the numerous members of several rodent families (e.g. voles and mice) that resemble true rats in appearance, usually having a pointy snout, a long, bare tail, and body length greater than about 12 cm, or 5 inches.
3.A person who is known for betrayal; a scoundrel; a quisling.
“What a rat, leaving us stranded here!”
Synonyms: stool pigeon, traitor
verb
1.(usually with “on” or “out”) To betray a person or party, especially by telling their secret to an authority or an enemy; to turn someone in.
“He is going to rat us out!”
2.To work as a scab, going against trade union policies.
3.(of a dog, etc.) To kill rats.
Synonyms: bewray, finger, put the finger on, tell on