How to say "astronaut" in Japanese

• 宇宙飛行士うちゅうひこうしCommon
  nounCovers the ordinary sense of 'astronaut', a person who travels into space. This is the common everyday word, appropriate in news, conversation, and writing about spaceflight.
  その宇宙うちゅう飛行士ひこうしは月つきに降り立おりたつのを見みられた。↗

  The astronaut was seen to land on the moon.
• アストロノート
  nounA loanword matching 'astronaut' directly, but less common. It may appear in stylistic or translated contexts, though 宇宙飛行士 is usually the word you want.

Use 宇宙飛行士 for any astronaut; it is the common word. 「アストロノート」 is a rarer loanword rendering of 'astronaut', understandable but seldom the word you want.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 宇宙飛行士うちゅうひこうしastronaut
• アストロノートastronaut