n.an act that avoids a loss of face (of dignity or prestige)
同义词：face saverface saving
英汉双解大词典
face-saver(face-savers)
1.
N-COUNT（可数名词）
A face-saver is an action or excuse which prevents damage to your reputation or the loss of people's respect for you. 保全面子的行为(或借口) [journalism]