headspace
noun
head·space
ˈhed-ˌspās
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
Cite this Entry
“Headspace.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/headspace. Accessed 6 Aug. 2026.
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