This is the 8782nd most frequent Portuguese word.
aniversariante
The person celebrating their birthday.
The word 'aniversariante' refers to the person whose birthday is being celebrated here.
A aniversariante cortou o bolo com entusiasmo.
The birthday person cut the cake enthusiastically.
The word 'aniversariante' is used to indicate the individual celebrating a birthday.
Os amigos do aniversariante trouxeram presentes maravilhosos.
The birthday person's friends brought wonderful gifts.
The context here emphasizes the central role of the 'aniversariante' in the celebration.