What types of ceremonies are there?

anniversary, banquet, baptism, birthday party, carousal, celebration, christening, closing ceremony, commemoration, confirmation, consecration, convention, dance, dedication, feast, festivity, fete, funeral, funfest, gala, game night, graduation, homecoming, inauguration, induction, initiation, launching, memorial, naming ceremony, opening, grand opening, parade, party, reception, recognition, reenactment, retirement, toast, trade fair, wake, wedding,

What words refer to specific holidays?

Christmas, New Years, Thanksgiving, Easter, Good Friday, Independence Day, Memorial Day, Labor Day, Washington's Birthday, Valentine's Day, Mothers Day,