(1):
(n.) An assembly of persons wearing masks, and amusing themselves with dancing, conversation, or other diversions.
(2):
(n.) A dramatic performance by actors in masks; a mask. See 1st Mask, 4.
(3):
(v. i.) To assemble in masks; to take part in a masquerade.
(4):
(v. i.) To frolic or disport in disquise; to make a pretentious show of being what one is not.
(5):
(v. t.) To conceal with masks; to disguise.
(6):
(n.) Acting or living under false pretenses; concealment of something by a false or unreal show; pretentious show; disguise.
(7):
(n.) A Spanish diversion on horseback.