Crossword answer · 3 letters
UFO definition and meaning
yoo eff oh · initialism
UFO
What does UFO mean?
UFO stands for unidentified flying object: an observed object in the air whose identity has not been established.
What does UFO mean in a crossword?
UFO answers the reviewed clue “Mysterious sighting up above, in brief.” In brief requests the compact form of an unexplained aerial sighting.
Why is UFO useful to learn?
Unidentified describes uncertainty, not proof of an alien spacecraft. A strange light may have an ordinary explanation that has not yet been identified.
Common clue patterns
- An unidentified flying object
- An unexplained aerial sighting, briefly
- Initials that do not establish extraterrestrial origin
These are editorially written pattern summaries, not a reproduced puzzle archive.
Other meanings to watch
The initialism is not interchangeable with every use of alien ship. More recent official discussions may use UAP, a different term and set of letters.