Knothole
Manhole
Manhole noun - A hole (usually with a flush cover) through which a person can gain access to an underground structure.
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Synonyms for Manhole
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Cite this Source
Manhole and Knothole. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/knothole/manhole
Knothole & Manhole. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/knothole/manhole>.
Manhole or Knothole. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/knothole/manhole.
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