"Christmas party" is an English equivalent of the French phrase la fête de Noël. The phrase translates literally as "the festivity of Christmas" in English. The pronunciation will be "la fet duh no-el" in French.
"Party" in English is fête or soirée in French.
"It's a party!" in English is C'est la fête! in French.
"A large party" in English is une grande fête in French.
"Come to the party!" in English is Venez à la fête! in French.
"la fête"
"I want to party!" in English is Je veux faire la fête!in French.
"We're going to party!" in English is On va faire la fête! in French.
"Are you coming to my party?" in English is Tu viens à ma petite fête? in French.
"You are invited to a party!" in English is Vous êtes invité à une fête! in French.
"Are you enjoying the party?" in English is Tu t'amuses bien à la fête? in French.
j'ai fait la fête