Related Clues:

• ''Please reply'' invitation letters
• Abbreviation on an invitation
• ''Please reply'' letters
• "Let me know if you're coming" letters
• Say you can go, say
• Post back to a host
• Invitation inits
• Common abbr. from the French
• Invitation's "Please answer"
• Answer the invite, briefly
• "Are you coming?" request
• Say whether or not you'll attend
• Brief invite answer?
• Answer an e-vite
• Decline the invite, perhaps