SINCE 1828
UFO
noun
\ ˌyü-(ˌ)ef-ˈō
, ˈyü-(ˌ)fō\
, ˈyü-(ˌ)fō\
plural UFO's
or UFOs\ ˌyü-(ˌ)ef-ˈōz
, ˈyü-(ˌ)fōz \
, ˈyü-(ˌ)fōz \
Definition of UFO
: an unidentified flying object
especially
: flying saucer
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More Definitions for UFO
UFO
noun
English Language Learners Definition of UFO
: a flying object in the sky that some people believe could be a spaceship from another planet
See the full definition for UFO in the English Language Learners Dictionary
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Merriam-Webster unabridged
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