masquerade
noun
°A party or assembly of people wearing masks, and amusing themselves with dancing, conversation, or other diversions.
"In courtly balls and midnight masquerades - Alexander Pope"
°(obsolete) A dramatic performance by actors in masks; a mask. See “mask”.
verb
°To assemble in masks; to take part in a masquerade.
°To frolic or disport in disguise; to make a pretentious show of being what one is not.