1. (n.) A costume party of persons wearing masks; a disguise or false outward appearance.

2. (n.) A dramatic performance by actors in masks; a mask. See Mask.

3. (n.) Acting or living under false pretenses; concealment of something by a false or unreal show; pretentious show; disguise.

4. (n.) A Spanish diversion on horseback.

5. (v. i.) To assemble in masks; to take part in a masquerade.

6. (v. i.) To frolic or disport in disguise; to make a pretentious show of being what one is not.

7. (v. t.) To conceal with masks; to disguise.