This is the 647th most frequent French word.
demander
"Demander" means "to ask" or "to request."
In this sentence, 'demander' means 'to ask' in the sense of requesting assistance.
Je vais demander de l'aide.
I am going to ask for help.
Here, 'demander' is used to mean 'to request' in a formal setting such as making a requirement.
Le professeur a demandé des devoirs supplémentaires.
The teacher requested additional homework.
In this context, 'demander' signifies 'to inquire' about a reason or cause.