Obstruct and Stop up

Obstruct

Obstruct verb - To prevent passage through by filling with something.
Usage example: at the moment the city's only tunnel between downtown and the airport is obstructed by an overturned tanker truck

Stop up is a synonym for obstruct in block topic. In some cases you can use "Stop up" instead a verb "Obstruct", when it comes to topics like let.

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

Obstruct is a synonym for stop up in block topic. You can use "Obstruct" instead a verb "Stop up", if it concerns topics such as let, stop.
Cite this Source
Stop up and Obstruct. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/obstruct/stop_up
Obstruct & Stop up. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/obstruct/stop_up>.
Stop up or Obstruct. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/obstruct/stop_up.
Google Ngram Viewer shows how "obstruct" and "stop up" have occurred on timeline