RSVP is the abbreviation of the French répondez s’il vous plait, or “please respond,” so your host is literally asking you for a response to their event. So respond, and respond quickly. Invitations ...
DEAR MISS MANNERS: My husband’s family lives in different areas of the country, and we see them a few times a year. He likes to invite them to a local restaurant at our expense. It is left up to me to ...