Yes, gown is a Scrabble word!

Verb

1. Dress in a gown

Noun

1. A woman's dress, usually with a close-fitting bodice and a long flared skirt, often worn on formal occasions

2. The members of a university as distinguished from the other residents of the town in which the university is located

3. Lingerie consisting of a loose dress designed to be worn in bed by women

4. Protective garment worn by surgeons during operations

5. Outerwear consisting of a long flowing garment used for official or ceremonial occasions