masquerade

Definitions

• An assembly or party of people wearing (usually elaborate or fanciful) masks and costumes, and amusing themselves with dancing, conversation, or other diversions.
• The act of wearing a mask or dress dressing up in a costume for, or as if for, a masquerade ball.
• (figuratively) An act of living under false pretenses; a concealment of something by a false or unreal show; a disguise, a pretence; also, a pretentious display.
• (figuratively) An assembly of varied, often fanciful, things.
• (fandom) A cosplay event at which costumed attendees perform skits.
• (obsolete) A dramatic performance by actors in masks; a mask or masque.
• (obsolete) A Spanish entertainment or military exercise in which squadrons of horses charge at each other, the riders fighting with bucklers and canes.