幽浮 Traditional form: 幽浮 Pinyin (reading): yōufú Definitions: UFO (loanword) unidentified flying object space ship Characters: 幽 - quiet, secluded, tranquil; dark 浮 - to drift, to float; mobile, temporary, unstable; reckless Traditional characters: 幽 - quiet, secluded, tranquil; dark 浮 - to drift, to float; mobile, temporary, unstable; reckless