Translation guide
Formal daytime attire for men, consisting of a tailcoat, striped trousers, and a top hat. In Japanese, the term is borrowed from English and used in specific formal contexts.
The specific formal outfit for men worn at daytime events like weddings or races.
モーニングのレンタルを予約しました。
I reserved a morning dress rental.
Specifically refers to the tailcoat part of the outfit. Less common overall.
He appeared wearing a morning coat.