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Synonyms

outer space

American  

noun

  1. space beyond the atmosphere of the earth.

  2. deep space.


outer space British  

noun

  1. (not in technical usage) any region of space beyond the atmosphere of the earth

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of outer space

First recorded in 1875–80

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The company holds the keys to outer space for many companies and for the U.S. government, dominating the rocket-launch industry with few rivals capable of challenging it.

From MarketWatch • Jun. 18, 2026

It’s like a meteor coming from outer space and hitting you on the head.

From Los Angeles Times • May 19, 2026

Before joining the Journal, Magdalena worked as a lead digital video producer at CNBC, where she pitched, reported, shot and edited short documentaries on various technology topics including quantum computing, green energy and outer space.

From The Wall Street Journal • May 11, 2026

The animated sequel from Universal and Illumination Studios tracks the adventures of Mario, Luigi and friends in outer space, where they must save Princess Rosalina.

From Barron's • Apr. 5, 2026

People were also starting to talk about the first humans flying to outer space.

From "Reaching for the Moon" by Katherine Johnson

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