Close off
Close off verb - To disallow entry into (a place) by means of a physical barrier at the entry point.
Seal
Seal verb - Close with or as if with a seal.
Close off and seal are semantically related in cordon off topic. Sometimes you can use "Close off" instead a verb "Seal".
Mutual synonyms
Both terms in one sentence
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Seal the arena.(Dusty pushes a button, closing the arena vents where the Joes are located)Cobra Commander: Close off the temple vents.(Dusty pushes another button, closing off the vents where the Cobra troops are)Cobra Commander: Open the arena vents.
Cite this Source
Seal and Close off. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/close_off/seal
Close off & Seal. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/close_off/seal>.
Seal or Close off. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/close_off/seal.
Google Ngram Viewer shows how "close off" and "seal" have occurred on timeline