Home › Words › N › nightclothnightclothnightcloth means A cloth placed over a birdcage, used to simulate the darkness of night and settle the bird(s) into sleep.EtymologyFrom night + cloth.nounA cloth placed over a birdcage, used to simulate the darkness of night and settle the bird(s) into sleep.A nightgown.Definitions & examples from Wiktionary (CC BY-SA 3.0).