gown

US /ɡaʊn/
UK /ɡaʊn/
"gown" picture
1.

a long elegant dress, typically worn on formal occasions

:
She wore a beautiful silk gown to the ball.
The bride's wedding gown was stunning.
2.

a long, loose outer garment worn by judges, academics, or members of the clergy

:
The judge wore a black gown in court.
Graduates proudly wore their academic gowns.