It is a very formal way to say "please".
Here are some other ways to say "please" in French, depending on the situation:
* "S'il te plaît" (pronounced "seel tu play") - This is a more informal way to say "please," used when addressing someone you know well.
* "Je vous prie" (pronounced "zhuh voo pree") - This is a very formal way to say "please," used in formal situations.
* "Veuillez" (pronounced "vuh-yay") - This is a very formal way to say "please," used in requests and commands. For example, "Veuillez m'aider" (pronounced "vuh-yay may-day") means "Please help me."
It's important to note that French has a formal and informal way of speaking, so it's important to use the correct form depending on the situation and your relationship with the person you are speaking to.