Spaceman

//ˈspeɪsˌmæn// noun, slang

noun, slang ·Moderate ·College level

Definitions

Noun
  1. 1
    An astronaut, often a male astronaut. childish, informal

    "I want to be a spaceman when I grow up."

  2. 2
    a male person trained to travel in a spacecraft wordnet
  3. 3
    A humanoid extraterrestrial. informal

    "A spaceman from Mars could easily pick out the most civilized nations here. They are the only ones who know how to make atom bombs."

Synonyms

All synonyms
astronautalienastronautrocketmanrocketman

Example

More examples

"The spaceman looked out of the space shuttle and saw a little green spaceman in a spaceship."

Etymology

From space + -man.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.