Pronunciation: /ˈæstrəˌnɔt/

Definitions of astronaut

noun a person who is trained to travel in a spacecraft

Example Sentences

A1 The astronaut floated in space.

A2 The astronaut trained for months before going to space.

B1 The astronaut conducted experiments on the International Space Station.

B2 The astronaut's mission to Mars was a historic achievement.

C1 The astronaut's memoirs detail their experiences in space.

C2 The astronaut's expertise in spacewalks made them a valuable member of the crew.

Examples of astronaut in a Sentence

formal The astronaut conducted experiments on the International Space Station.

informal Did you see that astronaut floating around in space?

slang That astronaut is out of this world!

figurative She navigated through the crowded room like an astronaut in zero gravity.

Grammatical Forms of astronaut

past tense

astronauted

plural

astronauts

comparative

more astronaut

superlative

most astronaut

present tense

astronaut

future tense

will astronaut

perfect tense

have astronauted

continuous tense

is astronauting

singular

astronaut

positive degree

astronaut

infinitive

to astronaut

gerund

astronauting

participle

astronauted

Origin and Evolution of astronaut

First Known Use: 1928 year
Language of Origin: Greek
Story behind the word: The word 'astronaut' originates from the Greek words 'astron' meaning star and 'nautes' meaning sailor.
Evolution of the word: The term 'astronaut' was first used in a 1928 science fiction novel called 'The Death's Head Meteor' by Neil R. Jones. It was later popularized during the space race era in the mid-20th century to refer to individuals who travel in outer space.