RSVP (Retired and Senior Volunteer Program) is one of the largest volunteer networks in the nation for people 55 and over. you can use the skills and talents you've learned over the years or develop new ones while serving in a variety of volunteer activities within you community.
RSVP (invitation) is a request for a response from the invited person or people. It is an initial ism that derived from the French phrase Repondez s'ill vous plait, literally Reply if you please or Please reply.