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

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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