* convivium: This refers to a banquet or a feast, often a more formal and elaborate gathering. This is a good choice if the party involves a lot of food and drink.
* festum: This means "festival" or "feast," suitable for a celebratory party.
* comissatio: This word specifically refers to a drinking party or revelry, often implying a less formal and potentially boisterous occasion.
* celebratio: This translates to "celebration," which is appropriate for a party marking a special event.
The best word to use will depend on the type of party you're describing.