Yes, glass is a Scrabble word!

Verb

1. Furnish with glass

2. Scan (game in the forest) with binoculars

3. Enclose with glass

4. Put in a glass container

5. Become glassy or take on a glass-like appearance

Noun

1. A brittle transparent solid with irregular atomic structure

2. A container for holding liquids while drinking

3. The quantity a glass will hold

4. A small refracting telescope

5. An amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant

6. A mirror; usually a ladies' dressing mirror

7. Glassware collectively