Stop up
Stop up verb - To prevent passage through by filling with something.
Stop is a synonym for stop up in obstruct topic. In some cases you can use "Stop" instead a verb "Stop up", when it comes to topics like make airtight.
Stop
Stop verb - To bring (as an action or operation) to an immediate end.
Mutual synonyms
Cite this Source
Stop and Stop up. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/stop_up/stop
Stop up & Stop. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/stop_up/stop>.
Stop or Stop up. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/stop_up/stop.
Google Ngram Viewer shows how "stop up" and "stop" have occurred on timeline