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\ 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
nounEnglish Language Learners Definition of UFO
: a flying object in the sky that some people believe could be a spaceship from another planet
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