is a specific kind of: holiday.

is a broader term that covers: Jewish New Year, Rosh Hashana, Rosh Hashanah, Rosh Hashona, Rosh Hashonah | movable feast, moveable feast | Circumcision, Feast of the Circumcision, January 1 | Christmas, Christmas Day, Dec 25, Xmas | Thanksgiving, Thanksgiving Day | Id al-Fitr | Feast of Sacrifice, Id al-Adha.

is a part of: church festival, religious festival.