(1):
(n.) Something done or said in order to amuse; a joke; a witticism; a jocose or sportive remark or phrase. See Synonyms under Jest, v. i.
(2):
(n.) A deed; an action; a gest.
(3):
(n.) A mask; a pageant; an interlude.
(4):
(v. i.) The object of laughter or sport; a laughingstock.
(5):
(v. i.) To take part in a merrymaking; - especially, to act in a mask or interlude.
(6):
(v. i.) To make merriment by words or actions; to joke; to make light of anything.