Locking
Locking noun - The act of locking something up to protect it.
Both words in one sentence
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Exceptions include anything smart enough to operate a door (locking it works though) and creatures that can pass through walls, most commonly ghosts.
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Failsafe Failure: When the staff perform an emergency shutdown on the park, all they accomplish is locking themselves in the control room and suffocating since the doors and ventilation system need power to operate and don't have a backup power source.
Cite this Source
Operate and Locking. (2016). Retrieved 2026, August 12, from https://thesaurus.plus/related/locking/operate
Locking & Operate. N.p., 2016. Web. 12 Aug. 2026. <https://thesaurus.plus/related/locking/operate>.
Operate or Locking. 2016. Accessed August 12, 2026. https://thesaurus.plus/related/locking/operate.
Google Ngram Viewer shows how "locking" and "operate" have occurred on timeline