UFO Definition

yo͝oĕf-ō
ufos
noun
Any of a number of unidentified objects or phenomena frequently reported, esp. since 1947, to have been observed or tracked in the sky and variously explained as being atmospheric phenomena, hallucinations, misperceptions of actual objects, alien spacecraft, etc.
Webster's New World
A spacecraft from another planet; flying saucer.
Webster's New World

Other Word Forms of UFO

Noun

Singular:
UFO
Plural:
ufos

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