ufo
word
Definition
A 'UFO' is an unidentified flying object, usually used when people see something in the sky that looks like an aircraft or spaceship but can't be explained.
Usage & Nuances
'UFO' is both an acronym and a word on its own, pronounced 'you-eff-oh'. Commonly refers to supposed alien spaceships, but technically means any unidentified flying object. Plural is 'UFOs' (never 'UFO's'). Often used in science fiction, news, or discussions of unexplained phenomena.
Example Sentences
I saw a UFO in the sky last night.
basic
The movie is about a UFO landing on Earth.
basic
Some people believe that a UFO visited their town.
basic
Do you really think that was a UFO, or just an airplane with strange lights?
natural
Every time someone sees a strange light, they think it's a UFO.
natural
I don't believe in aliens, but seeing that UFO was kind of creepy.
natural