A farewell said in the evening or before going to sleep.(phrase)
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Use "good night" in a sentence
"After another good night of sleep in the dark Dolceacqua apartment, we enjoyed the traditional breakfast in the Bar California."
"Watermen mooring their wherries downstream called good night to each other under a star-studded sky."
"AFTER LISA SAID good night to her parents, and her father shut her bedroom door, she sat in her bed like she usually did and looked over at the yellow house on the other side of Cannon Avenue, at the gray curtains on the second floor."