inner space


Definition of inner space

1 : space at or near the earth's surface and especially under the sea
2 : one's inner self

Keep scrolling for more

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

Keep scrolling for more

Learn More about inner space

Statistics for inner space

Look-up Popularity

Time Traveler for inner space

The first known use of inner space was in 1958

See more words from the same year

More from Merriam-Webster on inner space

Thesaurus: All synonyms and antonyms for inner space

Comments on inner space

What made you want to look up inner space? Please tell us where you read or heard it (including the quote, if possible).


to take the place or position of

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
Name That Thing

Test your visual vocabulary with our 10-question challenge!


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!