Yes, brass is a Scrabble word!

Noun

1. An alloy of copper and zinc

2. A wind instrument that consists of a brass tube (usually of variable length) that is blown by means of a cup-shaped or funnel-shaped mouthpiece

3. The persons (or committees or departments etc.) who make up a body for the purpose of administering something

4. Impudent aggressiveness

5. An ornament or utensil made of brass

6. The section of a band or orchestra that plays brass instruments

7. A memorial made of brass