Celebration
Part of speech: noun
Definition: The formal performance of a solemn rite, such as Christian sacrament The observance of a holiday or feast day, as by solemnities The act, process of showing appreciation, gratitude and/or remembrance, notably as a social event. A social gathering for entertainment and fun; a party.
Example sentence: My mother loved entertaining, and I've followed suit, so we have big celebrations for New Year, Passover, Thanksgiving and birthdays.
Jubilation
Part of speech: noun
Definition: A triumphant shouting; rejoicing; exultation.