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inner space

noun

Definition of inner space

1 : space at or near the earth's surface and especially under the sea
2 : one's inner self
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Examples of inner space in a Sentence

an intensely private individual, he treats his inner space as sacred ground that is off-limits to other people

Recent Examples on the Web

 Despite being an astrophysicist who studies outer space, I am drawn to books on our inner space that describe the latest advances in neuroscience. — WSJ, "Who Read What in 2018: History and Journalism," 10 Dec. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'inner space.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of inner space

1958, in the meaning defined at sense 1

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The first known use of inner space was in 1958

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