Definition

a UFO (Unidentified Flying Object): a strange vehicle in the sky, possibly containing aliens noun
  • "-They travel in UFOs (Unidentified Flying Objects) such as spaceships and flying saucers"
  • "-They travel in UFOs (Unidentified Flying Objects) such as spaceships and flying saucers"
  • "Donny is licensed to fly and certified to teach in single and multi-engine airplanes, as well as helicopters, gliders, hot air balloons and UFOs."

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