Open
Open adjective - Allowing passage without obstruction.
Usage example: thank you for clearing out the hallway so that it's open again
Vacant is a synonym for open in available topic. In some cases you can use "Vacant" instead an adjective "Open", when it comes to topics like accessible.
Vacant
Vacant adjective - Lacking contents that could or should be present.
Usage example: a vacant room that could be converted into a classroom
Both words in one sentence
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Seriously: Sharpay hears her singing in the loo, sees nobody, checks out the stalls, kicks the lone closed-yet-vacant stall open, then spies herself in the mirror and leaves.
Source: Searching the Stalls -
A hull breach or open exterior airlock will drain the air from a room and then air in adjacent rooms will start to flow into the vacant room.
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Around the middle of Part 7 is where it's the worst, but since everyone has such crazy and unique outfits and general appearances, you can still tell them apart, even if all women (and most guys) have the same vacant stare and semi-open mouth.
Source: Only Six Faces
Cite this Source
Vacant and Open. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/open/vacant
Open & Vacant. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/open/vacant>.
Vacant or Open. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/open/vacant.
Google Ngram Viewer shows how "open" and "vacant" have occurred on timeline