A big celebration is an event that is marked with great enthusiasm and joy. It can be a BASH, fest, GALA, fete, or JUBILEE. A BASH is a large, lively party, usually with music and dancing. A fest is a festival or celebration, often with food and entertainment. A GALA is a festive occasion, typically with dinner and dancing. A fete is a large outdoor party or celebration, often with games and activities. A JUBILEE is a special anniversary or celebration, usually marking a significant event or milestone.