Simple:
* We had a big celebration for her birthday.
* The team celebrated their victory with a party.
Descriptive:
* The annual festival was a joyous celebration of music and culture.
* The city erupted in a celebration of their team's championship win.
Figurative:
* The news of their engagement was met with a celebration of joy and excitement.
* The successful launch of the rocket was a celebration of human ingenuity.
Formal:
* The event was a formal celebration of the company's 50th anniversary.
* The ceremony was a celebration of the country's independence.
Let me know if you'd like me to craft a sentence for a specific situation!