dinner jacket
US /ˈdɪn.ər ˌdʒæk.ɪt/
UK /ˈdɪn.ər ˌdʒæk.ɪt/

1.
veste de smoking, smoking
a man's formal jacket, traditionally black or white, worn for evening events; a tuxedo jacket
:
•
He looked very smart in his new dinner jacket.
Il avait l'air très élégant dans sa nouvelle veste de smoking.
•
A black tie event requires a dinner jacket.
Un événement cravate noire exige une veste de smoking.