smoking, costume de soirée
I rented a tux for a wedding.
J’ai loué un smoking pour un mariage.
Don't want to get my tux wet!
Je ne veux pas mouiller mon smoking !
— Bicycle Thieves (1948)
You know, you should wear a tux more often.
Tu sais, tu devrais porter un smoking plus souvent.
— Crazy Rich Asians (2018)
Why are you wearing a tux?
Pourquoi portez-vous un smoking ?