RSVP

RSVP or R.S.V.P. [ahr-es-vee-pee] Word Origin verb (used without object), RSVPed or RSVP’d, RSVPing or RSVP’ing.

1. to reply to an invitation: Don’t forget to RSVP before Thursday.

noun, plural RSVP’s.

2. a reply to an invitation: He sent a lovely bouquet of flowers with his RSVP.
3. (used on an invitation to indicate that the favor of a reply is requested).

Origin of RSVP 1895–1900; French r(épondez) s(‘il) v(ous) p(laît) please reply British Dictionary definitions for r.s.v.p.’ing RSVP abbreviation for

1. répondez s’il vous plaît

Word Origin for RSVP French: please reply