you say "son anniversaire"
a birthday is 'un anniversaire' in French
Birthday is "anniversaire" (masc.) in French.
d'anniversaire
A birthday cake in French is 'un gâteau d'anniversaire'
"Bonaniversè" is how you would say Happy Birthday in Louisiana Creole French.
you say mon gorna be mansa
un anniversaire
"Today is my birthday!" in French is "Aujourd'hui est mon anniversaire !"
C'est mon anniversaire.
joyeux anniversaire
Joyeux anniversaire
C'est ton anniversaire