Caulk
Caulk verb - Seal with caulking.
Stop up
Stop up verb - To prevent passage through by filling with something.
Mutual synonyms
Cite this Source
Stop up and Caulk. (2016). Retrieved 2026, August 09, from https://thesaurus.plus/related/caulk/stop_up
Caulk & Stop up. N.p., 2016. Web. 09 Aug. 2026. <https://thesaurus.plus/related/caulk/stop_up>.
Stop up or Caulk. 2016. Accessed August 09, 2026. https://thesaurus.plus/related/caulk/stop_up.
Google Ngram Viewer shows how "caulk" and "stop up" have occurred on timeline