astronauts - Master This Word
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Master this word with our 5-step learning method – Learn English in English
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
astro- = star, nauta = sailor. Origin: Greek → Latin → English. Imagine a sailor navigating through a sea of stars, exploring the unknown beyond our world.
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputAn astronaut is a person trained to travel in space or to work on space exploration missions. In everyday English you’ll often hear space traveler as a paraphrase, but astronaut is the standard term. The name comes from astro- meaning star and nauta meaning sailor, picturing someone navigating a sea of stars. Astronauts train for life in microgravity, operate spacecraft, conduct experiments, and represent their space agency in public. Use astronaut when you refer to a specific profession, a mission crew, or a biographical note. The plural is astronauts; you don’t normally use astronaut as a verb. Distinguish astronaut from cosmonaut, which is used in some countries for a separate program.
In English, a profession name often relies on clear, compact noun forms and distinct pluralization; learners tend to confuse cosmonaut as a general synonym and worry about gender or verb forms that don’t exist for this noun.
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