Gum
Stop up
Stop up verb - To prevent passage through by filling with something.
Usage example: clear the leaves out of the rain gutters so they don't stop up the downspouts again
Gum and stop up are semantically related in make airtight topic. Sometimes you can use "Gum" instead a verb "Stop up".
Cite this Source
Stop up and Gum. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/gum/stop_up
Gum & Stop up. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/gum/stop_up>.
Stop up or Gum. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/gum/stop_up.
Google Ngram Viewer shows how "gum" and "stop up" have occurred on timeline