| Main Entry: | |
| Part of Speech: | noun |
| Definition: | spaceship |
| Synonyms: | UFO, extraterrestrial spacecraft, extraterrestrial vessel, spacecraft, spaceship, unidentified flying object |
| Main Entry: | UFO |
| Part of Speech: | noun |
| Definition: | unidentified flying object |
| Synonyms: | extraterrestrial spacecraft, flying saucer, rocket, rocketship, spaceship |
| Main Entry: | rocket ship |
| Part of Speech: | noun |
| Definition: | space ship |
| Synonyms: | interplanetary rocket, manned rocket, space rocket, spaceship |
| Main Entry: | space capsule |
| Part of Speech: | noun |
| Definition: | space module |
| Synonyms: | ballistic capsule, capsule, command module, exploratory ship, lunar module, module, space shuttle, spacecraft, spaceship |
| Main Entry: | unidentified flying object |
| Part of Speech: | noun |
| Definition: | unknown flying object |
| Synonyms: | UFO, extraterrestrial spacecraft, flying saucer, spacecraft, spaceship |