Related Clues:
- Invitation request, for short
- Abbreviation for "Answer, please"
- Let people know if you're coming to their wedding
- Part of 69-Across
- Abbr. on a letter
- Respond to the invite
- Respond to an invitation
- Letters needing reply
- Letters on invitations
- Get back to the host
- Say 'I'll be there!', say
- Let the host know if you're coming
- Initials on an invitation
- 'Let me know if you're coming' letters
- Say if you'll be there