noun
Uncommon
ufo
YOO-foh
Ufo (noun) means an unidentified flying object — something seen in the sky that cannot be readily explained, often associated with claims of alien spacecraft. Example: “Witnesses reported a ufo hovering silently over the field.”
noun
1
An unidentified flying object — something seen in the sky that cannot be readily explained, often associated with claims of alien spacecraft.
"Witnesses reported a ufo hovering silently over the field."
"The documentary examined dozens of alleged ufo sightings from the 1950s."
How to use ufo
Learner’s notesIn plain EnglishSomething spotted in the sky that people can't identify — sometimes assumed to be an alien craft.
Common pairings
ufo sighting
spot a ufo
ufo sightings
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Word forms
- Plural
- ufos
Fill the gap
Can you complete this real example?
Witnesses reported a _____ hovering silently over the field.
Etymology
Reading of UFO as a word in its own right.
Synonyms
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flying saucer
unidentified flying object
Related words
Frequently asked questions
What does “ufo” mean?
The word “ufo” means an unidentified flying object — something seen in the sky that cannot be readily explained, often associated with claims of alien spacecraft. In plain terms, something spotted in the sky that people can't identify — sometimes assumed to be an alien craft.
How do you pronounce “ufo”?
“Ufo” is pronounced YOO-foh (/ˈju.foʊ/ in IPA).
How do you use “ufo” in a sentence?
Here is “ufo” used in a sentence: “Witnesses reported a ufo hovering silently over the field.”
What part of speech is “ufo”?
“Ufo” is a noun.
Is “ufo” a common word?
“Ufo” is an uncommon word in modern English.
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