UFO
noun
ˌyü-(ˌ)ef-ˈō 
ˈyü-(ˌ)fō
plural UFO's or UFOs
ˌyü-(ˌ)ef-ˈōz
ˈyü-(ˌ)fōz
: a mysterious flying object in the sky that is sometimes assumed to be a spaceship from another planet : unidentified flying object
"All right." The President sighed. "Is there anybody around this table who thinks UFOs and this signal from Vega have anything to do with each other?"—
Carl Sagan
Carl SaganIn 1966, the first UFO "abduction" was described in journalist John G. Fuller's book The Interrupted Journey.—Keay Davidson
Keay Davidsoncalled also UAP, unidentified aerial phenomenon, unidentified anomalous phenomenon
Examples of UFO in a Sentence
Recent Examples on the Web
The Buckeye State has its fair share of out-of-this world private residences, including a UFO house, a stationary ship and one with mushroom roofs.
—Grace Tucker, The Enquirer, 21 Apr. 2024
Pacific time, Balvin took the stage amidst the eerie sight of a UFO hovering overhead, setting the tone for a night of otherworldly entertainment.
—Isabela Raygoza, Billboard, 15 Apr. 2024
One of the common threads of UFO sightings across decades have been secret military aircraft and spacecraft in development or not yet publicly acknowledged.
—Garrett M. Graff, WIRED, 11 Mar. 2024
For Pilkington, the bizarre experience would inspire a lifelong obsession with the UFO phenomenon.
—Lucas Ropek / Gizmodo, Quartz, 19 Mar. 2024
The incident generated media attention and discussions within the UFO community.
—The Arizona Republic, 13 Mar. 2024
In addition to his allegations about a UFO retrieval program, Grusch has claimed that Mussolini and the Vatican once worked together to recover an alien ship and that UFOs may be evidence of interdimensional beings or time travelers.
—Lucas Ropek / Gizmodo, Quartz, 9 Mar. 2024
Blink-182 guitarist Tom DeLonge has long enjoyed a parallel career as an author, filmmaker and UFO researcher/activist, and his next endeavor away from the stage taps into those paranormal vibes.
—Spin Staff, SPIN, 28 Feb. 2024
This may include claims of UFO sightings or encounters with aliens, which are then claimed to be dismissed or suppressed by official channels.
—Mark Travers, Forbes, 25 Feb. 2024
Grace Tucker, The Enquirer, 21 Apr. 2024
Pacific time, Balvin took the stage amidst the eerie sight of a UFO hovering overhead, setting the tone for a night of otherworldly entertainment.
—Isabela Raygoza, Billboard, 15 Apr. 2024
One of the common threads of UFO sightings across decades have been secret military aircraft and spacecraft in development or not yet publicly acknowledged.
—Garrett M. Graff, WIRED, 11 Mar. 2024
For Pilkington, the bizarre experience would inspire a lifelong obsession with the UFO phenomenon.
—Lucas Ropek / Gizmodo, Quartz, 19 Mar. 2024
The incident generated media attention and discussions within the UFO community.
—The Arizona Republic, 13 Mar. 2024
In addition to his allegations about a UFO retrieval program, Grusch has claimed that Mussolini and the Vatican once worked together to recover an alien ship and that UFOs may be evidence of interdimensional beings or time travelers.
—Lucas Ropek / Gizmodo, Quartz, 9 Mar. 2024
Blink-182 guitarist Tom DeLonge has long enjoyed a parallel career as an author, filmmaker and UFO researcher/activist, and his next endeavor away from the stage taps into those paranormal vibes.
—Spin Staff, SPIN, 28 Feb. 2024
This may include claims of UFO sightings or encounters with aliens, which are then claimed to be dismissed or suppressed by official channels.
—Mark Travers, Forbes, 25 Feb. 2024
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'UFO.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near UFO
Cite this Entry
“UFO.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/UFO. Accessed 25 Apr. 2024.
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