RSVP — abbreviation for 'répondez s'il vous plaît', meaning please reply to an invitation

a mother sits at a coffee table holding a beautifully decorated wedding invitation in one hand. She picks up her phone with the other hand and begins dialing a number. The invitation shows elegant floral borders and fancy calligraphy indicating a formal event. After looking at the invitation details, she speaks into the phone to confirm her family's attendance. Her husband and children gather around excitedly discussing the upcoming celebration. Other family members nod approvingly as they hear her positive response to the hosts. someone replying to confirm attendance at a formal invitation