Definition of UFO in English:


Line breaks: UFO
Pronunciation: /juːɛfˈəʊ
, ˈjuːfəʊ

noun (plural UFOs)

A mysterious object seen in the sky for which it is claimed no orthodox scientific explanation can be found, often supposed to be a vehicle carrying extraterrestrials.


1950s: acronym from unidentified flying object.

Definition of UFO in:

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Pronunciation: ˈflɪp(ə)nt
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