unidentified flying object
Plural
unidentified flying objects
1
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
- Witnesses reported seeing an unidentified flying object hovering silently in the night sky.
- The military investigated multiple reports of unidentified flying objects near the military base.
- Scientists study reports of unidentified flying objects to determine if they have natural or man-made origins.
- Many people believe that unidentified flying objects could be evidence of extraterrestrial life visiting Earth.
- The pilots reported encountering an unidentified flying object that moved at high speeds and changed direction abruptly.
Synonyms: