| unidentified flying object(noun, unknown) | |
| flying saucer(noun, expression, object, ship, jet) | |
| extraterrestrial spacecraft(noun, expression, object, rocket, spaceship) | |
| et air ship(expression, idiom) | |
| strange craft | |
| airship(noun, balloon, jet, airplane) | |
| alien craft(noun, expression, spaceship) | |
| hovercraft | |
| roswell crasher | |
| aircraft(noun, plane, airplane, airship, dirigible) | |
| area 51 craft(expression, idiom) | |
| mysterious sky sight(expression, idiom) | |
| rocket(noun, object) | |
| space shuttle | |
| aerial anomaly | |
| alien spacecraft | |
| balloon(noun, jet, airplane) | |
| chopper(noun, balloon, jet, airplane) | |
| flying machine(noun, expression, balloon, jet, airplane) | |
| rocketship(noun, object) |
For more, visit
Ufo on
Power Thesaurus
| APA | Smart Define. (2015). ufo thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/ufo/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "ufo thesaurus" https://smartdefine.org/ufo/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, ufo thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/ufo/thesaurus/synonyms>. |
| MLA | Smart Define. "ufo thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/ufo/thesaurus/synonyms> |