noun
jubilation
joo-bih-LAY-shun/ˌdʒuːbɪˈleɪʃn/
Great joy, especially after a success.
Neighbors hug one another and raise their hands in jubilation.

Etymology
Jubilation originally named a shouting for joy: happiness expressed aloud in whoops. The word now also names the intense happiness and celebration behind that outward expression.
In context
the unbridled jubilation and ecstasy of finishing a creative piece or actually finishing something.
More examples
- The final whistle sparked jubilation among the home fans.
- Her jubilation at receiving the scholarship was impossible to hide.
- Relief turned to jubilation when the missing hikers returned safely.
Forms
jubilation
jubilant adjective — showing great happiness, often after success