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Definitions

UFO

[yoo-ef-oh, yoo-foh] / ˈyuˈɛfˈoʊ, ˈyu foʊ /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The Pentagon released scores of UFO files on Friday with descriptions of reported sightings of orbs, discs and fireballs spanning 80 years.

From BBC • May 22, 2026

To see just how far ETFs have drifted from the investment mainstream, look at the Tuttle Capital UFO Disclosure ETF.

From The Wall Street Journal • May 22, 2026

If Spielberg’s earlier UFO movies gave us awe, comfort and catastrophe, this one feels like an encounter of a fourth kind: What happens when the cover story breaks?

From Los Angeles Times • May 14, 2026

UFO is just one of several ETFs catered to the business of space.

From Barron's • May 11, 2026

They stared at me like I was Bigfoot or a UFO.

From "The Absolutely True Diary of a Part-Time Indian" by Sherman Alexie




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