Backup
Backup noun - A crowded mass (as of cars) that impedes or blocks movement.
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Synonyms for Backup
Unoccupied and backup are semantically related. In some cases you can use "Unoccupied" instead an adjective "Backup".
Nearby Word: backing
Unoccupied
Unoccupied adjective - Not held or filled or in use.
Backup and unoccupied are semantically related. Sometimes you can use "Backup" instead an adjective "Unoccupied".
Both words in one sentence
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The "forcefield" can't be seen through, but the unoccupied cells in the same room have backup bars.
Source: Force-Field Door
Cite this Source
Unoccupied and Backup. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/backup/unoccupied
Backup & Unoccupied. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/backup/unoccupied>.
Unoccupied or Backup. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/backup/unoccupied.
Google Ngram Viewer shows how "backup" and "unoccupied" have occurred on timeline