white lie
英 [ˌwaɪt ˈlaɪ]
美 [ˌwaɪt ˈlaɪ]
n. (尤指为避免伤害他人感情的)善意的谎言，小谎
牛津词典
noun
- （尤指为避免伤害他人感情的）善意的谎言，小谎
a harmless or small lie, especially one that you tell to avoid hurting sb
柯林斯词典
- 善意的谎言
If you refer to an untrue statement as awhite lie, you mean that it is made to avoid hurting someone's feelings or to avoid trouble, and not for an evil purpose.
英英释义
noun
- an unimportant lie (especially one told to be tactful or polite)