gown; elegant dress
Refers to a formal or elegant gown, such as an evening gown or academic robe. Not used for everyday clothing.
卒業式で学生たちは黒いガウンを着ていた。
The students wore black gowns at the graduation ceremony.
She stood on the stage wearing a white gown.
dressing gown; bathrobe
Commonly used for a bathrobe or a comfortable robe worn at home, especially after bathing or while relaxing.
お風呂上がりにガウンを羽織る。
I put on a bathrobe after taking a bath.
After the bath, I slipped on a robe and relaxed.
He was drinking coffee dressed in his robe.
As soon as the ceremony ended, she took off her gown.
白衣 specifically means the white coat worn by doctors or scientists, while ガウン is a looser term for any long robe-like garment, including bathrobes or ceremonial gowns.
arrival at ... · counter for suits of clothing · nth place (in a race) · counter for moves (in go)
Loanword from English 'gown'.