IPA: /brɑː/
KK: /bræ/
A piece of clothing worn by women to support their breasts.
She bought a new bra for her dress.
The word 'bra' is a shortening of 'brassiere' (from French *brassière*, meaning a woman's undergarment). It refers specifically to a garment designed to support the breasts.
Think of the French word 'brassière' which means a woman's undergarment — that's how you remember that 'bra' is a garment for support.