Cosi __, Mozart Opera About Fidelity
Puzzle 3 of Building a House Hard Pack
Question is: Cosi __, Mozart Opera About Fidelity
and the answer is: FANTUTTE
Word Meaning:
FAN — A hand-held device consisting of concertinaed material, or slats of material, gathered together at one end, that may be opened out into the shape of a sector of a circle and waved back and forth in order to move air towards oneself and cool oneself.
Definitions from Wiktionary.