The term 'ONE WHO CRIES 'UNCLE!'' is a phrase used to indicate surrender or defeat. It is often used in children's games, and is thought to have originated in the United States in the early 20th century. The crossword solutions for this term are AUNT (4 letters) and NIECE (5 letters). An aunt is the sister of ONE's parent, while a niece is the daughter of ONE's sibling. Both an aunt and a niece can be considered a 'ONE who cries 'UNCLE!'' when they are playing a game and have been defeated.