Caulk
Caulk verb - Seal with caulking.
Plug
Plug verb - To close up so that no empty spaces remain.
Usage example: plugged the hole in the wall with putty
Mutual synonyms
Cite this Source
Plug and Caulk. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/caulk/plug
Caulk & Plug. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/caulk/plug>.
Plug or Caulk. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/caulk/plug.
Google Ngram Viewer shows how "caulk" and "plug" have occurred on timeline