2RSVP 
/ˌɑɚˌɛsˌvi:ˈpi:/ verb
RSVP's or RSVPs; RSVP'd or RSVPed; RSVP'·ing or RSVP·ing /ˌɑɚˌɛsˌvi:ˈpi:/ verb [no obj] chiefly US : to respond to an invitation
▪ They asked us to RSVP by this Friday. ▪ Have you RSVP'd?
▪ They asked us to RSVP by this Friday. ▪ Have you RSVP'd?
