This is the 9345th most frequent French word.
demanderait
"Demanderait" means "would ask" or "would request."
Here, 'demanderait' is used to express a hypothetical scenario where the subject might request assistance if the condition (needing help) is met.
Il demanderait de l'aide s'il en avait besoin.
He would ask for help if he needed it.
In this sentence, 'demanderait' is used in a question to speculate about what the subject might request or wish for on their birthday.
Que demanderait-elle pour son anniversaire ?
What would she ask for her birthday?
Here, 'demanderait' is used in an impersonal question to suggest consideration of whether requesting silence would be appropriate in the given context.