headspace

noun

head·​space ˈhed-ˌspās How to pronounce headspace (audio)
1
: the volume above a liquid or solid in a closed container
The demonstrator suggests that the slow leakage of hydrogen from the balloons … allowed for the accumulation of hydrogen and oxygen in the bag's headspace.Chemical and Engineering News
To process sauce, immediately ladle hot sauce into hot, clean half-pint canning jars, leaving 1/4-inch headspace.Better Homes and Gardens
2
: vertical space in which to stand, sit, or move : headroom
The sleeping area [of a tiny house] looks restful and thanks to the curved roof, probably has more headspace than most …Kimberly Mok
3
informal : mind-set, frame of mind
"It's difficult to tell how people have changed," says Radiohead guitarist Ed O'Brien. "But Thom's been in a better headspace for quite a few years."Brian Raftery

Examples of headspace in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Below, Shiffrin describes her headspace going into Milano Cortina, her rebound from a brutal puncture injury sustained in Vermont in 2024, and her dream podcast guest. Nick Remsen, Vogue, 7 Feb. 2026 When asked about his goalie practicing the art of deception in Wild practices, Hynes flashed a broad smile and snapped into his Team USA headspace quickly. Jess Myers, Twin Cities, 5 Feb. 2026 When freezing foods with liquid in glass jars or containers, leave 1 to 3 inches of headspace at the top to allow for expansion. Olivia McIntosh, Martha Stewart, 31 Jan. 2026 And my job was to create an environment that put them in the right headspace. Georgina Jedikovska, Interesting Engineering, 22 Jan. 2026 See All Example Sentences for headspace

Word History

First Known Use

1895, in the meaning defined at sense 1

Time Traveler
The first known use of headspace was in 1895

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Cite this Entry

“Headspace.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/headspace. Accessed 14 Feb. 2026.

Last Updated: - Updated example sentences
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