Yes, cat is a Scrabble word!

Verb

1. Beat with a cat-o'-nine-tails

2. Eject the contents of the stomach through the mouth

Noun

1. Feline mammal usually having thick soft fur and no ability to roar: domestic cats; wildcats

2. An informal term for a youth or man

3. A spiteful woman gossip

4. The leaves of the shrub Catha edulis which are chewed like tobacco or used to make tea; has the effect of a euphoric stimulant

5. A whip with nine knotted cords

6. A large tracked vehicle that is propelled by two endless metal belts; frequently used for moving earth in construction and farm work

7. Any of several large cats typically able to roar and living in the wild

8. A method of examining body organs by scanning them with X rays and using a computer to construct a series of cross-sectional scans along a single axis