fancy ball; costume ball; masquerade ball
A formal dance event where attendees wear elaborate or themed costumes. Cross-referenced with 仮装舞踏会.
See also: 仮装舞踏会
I heard everyone is coming in costume to tonight's fancy ball.
She had a new dress made for the fancy ball.
Variant with a middle dot; less common but still seen.
Loanword from English 'fancy ball'.