Related Clues:

• Abbr. on a letter
• Respond to the invite
• Respond to an invitation
• Letters needing reply
• Invitation abbr. concerning drinks
• 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
• Part of an invitation to an imbiber
• BBQ invite letters
• Letters on a party invitation
• Say if you'll be there