UFOnoun [ C ]
uk/ˌjuː.efˈəʊ/us/ˌjuː.efˈoʊ/abbreviation for unidentified flying object: an object seen in the sky that is thought to be a spacecraft from another planet:
Several UFO sightings have been reported.
Thesaurus: synonyms and related words
Space travel
- astronaut
- astronautics
- autopilot
- blast
- command module
- cosmonaut
- earthbound
- flyby
- heat shield
- launch pad
- mission control
- moon buggy
- NASA
- retrorocket
- rocket
- rocket ship
- spacecraft
- spaceman
- touchdown
- tracking station
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