RSVP stands for the French phrase "Répondez s'il vous plaît," which translates to "Please respond." It is commonly used in invitations to request that guests confirm their attendance at an event, such as a wedding or party. This helps the host plan for the number of attendees and make necessary arrangements. When you receive an invitation with RSVP, it is important to reply by the specified date. You can respond positively if you plan to attend or decline if you cannot make it. This practice ensures clear communication and helps hosts manage their events more effectively.