morning suit
US /ˈmɔːr.nɪŋ ˌsuːt/
UK /ˈmɔːr.nɪŋ ˌsuːt/

1.
tight, abito da mattina
a man's formal outfit for daytime wear, consisting of a tailcoat, waistcoat, and striped trousers
:
•
He wore a traditional morning suit to the wedding.
Ha indossato un tradizionale tight al matrimonio.
•
Guests were asked to wear a morning suit or equivalent formal attire.
Agli ospiti è stato chiesto di indossare un tight o un abito formale equivalente.