UFO

noun
UFO \ ˌyü-(ˌ)ef-ˈō \ ˈyü-(ˌ)fō \
1953
  • a mysterious flying object in the sky that is sometimes assumed to be a spaceship from another planet : unidentified flying object —called also UAP, unidentified aerial phenomenon, unidentified anomalous phenomenon
Powered by Merriam-Webster
images meanings .com