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
Stopple
Stopple verb - Close or secure with or as if with a stopper.
Mutual synonyms
Cite this Source
Stopple and Stop up. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/stop_up/stopple
Stop up & Stopple. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/stop_up/stopple>.
Stopple or Stop up. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/stop_up/stopple.
Google Ngram Viewer shows how "stop up" and "stopple" have occurred on timeline