Unidentified flying object
01
未確認飛行物体
a mysterious object that some people claim to have seen flying around in the sky and assume that it is a spaceship from another world
例
Witnesses reported seeing an unidentified flying object hovering silently in the night sky.
目撃者たちは、夜空に静かに浮かぶ未確認飛行物体を見たと報告した。
