Barriers
Locks
Both words in one sentence
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This turns out to be a moot point in The Rhesus Chart by Charles Stross, as the vampires can simply hypnotize people into inviting them inside, the difficulty lying in combination locks and swipe cards, not mythical barriers.
Source: Must Be Invited - After the major flood of 1953, where many people drowned, the Dutch government created an ambitious and unique project called The Delta Works, where dams, sluices, locks, dykes, levees and storm slurge barriers were built to succesfully put a stop to these continuous floods.
Cite this Source
Locks and Barriers. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/barriers/locks
Barriers & Locks. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/barriers/locks>.
Locks or Barriers. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/barriers/locks.
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