Rsvp

[Monty]

Dan [Foxs] definition is correct, except the actual [french] phrase is Repondez [sil vous plait].

[Merna]

Répondez sil vous plaît; please reply (used at the end of invitations to request a response).

[Justin Bieber]

abbreviation for répondez s’il vous plaît, French for please reply; used at the end of a written invitation to mean that you should let the people who invited you know whether or not you are coming: