1.an alloy of copper and zinc
2.a wind instrument that consists of a brass tube (usually of variable length) 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;
he claims that the present administration is corrupt
4.impudent aggressiveness;
I couldn't believe her boldness
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