Coy Addition on an Invite, Wife, Husband, or Other
This page is the CodyCross answer for the clue below from Art Museum, Group 721, Puzzle 2 (Installations).
Question is: Coy Addition on an Invite, Wife, Husband, or Other
and the answer is: PLUSONE
Word Meaning:
PLUS ONE — A friend or partner whom one brings along to an event; a guest of a guest.
Definitions from Wiktionary.