airlock

noun/ˈɛrˌlɑk/

Frequency rank: #18,145 most common English word

Meaning

a small chamber with two airtight doors that allows movement between areas of different air pressure without letting air escape.

Illustration for the English word “airlock”

Example sentence

The astronauts waited in the airlock before stepping out into open space.

Synonyms & related words

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