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We found 31 dictionaries with English definitions that include the word astronaut:
Click on the first link on a line below to go directly to a page where "astronaut" is defined.

General (27 matching dictionaries)

1. astronaut: Merriam-Webster.com [home, info]
2. astronaut: Oxford Learner's Dictionaries [home, info]
3. astronaut: American Heritage Dictionary of the English Language [home, info]
4. astronaut: Collins English Dictionary [home, info]
5. astronaut: Vocabulary.com [home, info]
6. astronaut: Macmillan Dictionary [home, info]
7. Astronaut, astronaut: Wordnik [home, info]
8. astronaut: Cambridge Advanced Learner's Dictionary [home, info]
9. astronaut: Wiktionary [home, info]
10. astronaut: Webster's New World College Dictionary, 4th Ed. [home, info]
11. astronaut: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. astronaut: Infoplease Dictionary [home, info]
13. astronaut, astronaut: Dictionary.com [home, info]
14. astronaut: Online Etymology Dictionary [home, info]
15. astronaut: UltraLingua English Dictionary [home, info]
16. astronaut: Cambridge Dictionary of American English [home, info]
17. Astronaut (Duran Duran album), Astronaut (disambiguation), Astronaut (film), Astronaut (song), Astronaut, The Astronaut: Wikipedia, the Free Encyclopedia [home, info]
18. astronaut: Rhymezone [home, info]
19. Astronaut (m), astronaut, astronaut (de): AllWords.com Multi-Lingual Dictionary [home, info]
20. Astronaut: Encarta® Online Encyclopedia, North American Edition [home, info]
21. astronaut: Free Dictionary [home, info]
22. astronaut: Mnemonic Dictionary [home, info]
23. astronaut: WordNet 1.7 Vocabulary Helper [home, info]
24. astronaut: LookWAYup Translating Dictionary/Thesaurus [home, info]
25. astronaut: Dictionary/thesaurus [home, info]

Computing (1 matching dictionary)

26. astronaut: Encyclopedia [home, info]

Miscellaneous (1 matching dictionary)

27. Astronaut: Brilliant Dream Dictionary [home, info]

Science (1 matching dictionary)

28. ASTRONAUT: Zoom Astronomy Glossary [home, info]

Slang (1 matching dictionary)

29. astronaut: Urban Dictionary [home, info]

(Note: See astronauts for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (astronaut) ▸ noun:  a person trained to travel in a spacecraft ("The Russians called their astronauts cosmonauts") ▸ Also see astronauts ▸ Word origin ▸ Words similar to astronaut ▸ Usage examples for astronaut ▸ Idioms related to astronaut (New!) ▸ Popular adjectives describing astronaut ▸ Words that often appear near astronaut ▸ Rhymes of astronaut ▸ Invented words related to astronaut