What does RSVP stand for in terms of etiquette?

RSVP stands for "Répondez s'il vous plaît," which is French for "please respond." This phrase is commonly used in invitations to indicate that the host is requesting a reply regarding attendance. The intention behind RSVP is to allow the host to plan for the event effectively, ensuring that there are enough accommodations, seating, and food for all guests. Responding to an invitation in this manner demonstrates good etiquette and respect for the host’s efforts in organizing the event.

In contrast, other options do not reflect the traditional meaning or usage of RSVP and do not resonate with etiquette principles. "Respond to your service provider" and "Remain silent, very polite" suggest a more passive or service-based approach, which does not capture the essence of communication expected in social invitations. "Reserve your spot vigilantly" implies a focus on securing a place without the key implication of responding to the host's invitation.