brasswork (uncountable) Work or ornamentation made of brass.

What does brass mean?

a : high-ranking members of the military. b : persons in high positions (as in a business or the government)

Is brass a noun or adjective?

brass used as a noun:

A metallic alloy of copper and zinc used in many industrial and plumbing applications. A class of wind instruments, usually made of metal (such as brass), that use vibrations of the player's lips to produce sound.