(1):

(n.) A day fixed by law for suspension of business; a legal holiday.

(2):

(n.) A consecrated day; religious anniversary; a day set apart in honor of some person, or in commemoration of some event. See Holyday.

(3):

(n.) A day of exemption from labor; a day of amusement and gayety; a festival day.

(4):

(a.) Of or pertaining to a festival; cheerful; joyous; gay.

(5):

(a.) Occurring rarely; adapted for a special occasion.