What is Another name for celebration?

Here are some other names for celebration, depending on the context:

Formal:

* Festivity

* Commemoration

* Observance

* Jubilee (for a special anniversary)

* Fete (especially for a public event)

Informal:

* Party

* Bash

* Get-together

* Gathering

* Soiree (for a formal social event)

* Hoedown (for a festive gathering with music and dancing)

More specific:

* Festival (a period of celebration)

* Holiday (a day set aside for celebration)

* Ceremony (a formal event)

* Rite (a ritualistic practice)

* Feast (a large meal)

The best synonym will depend on the specific situation and the tone you want to convey.