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
Plug up and obstruct are semantically related. In some cases you can use "Plug up" instead a verb "Obstruct".
Plug up
Plug up verb - To prevent passage through by filling with something.
Usage example: hair plugged up the drain
Mutual synonyms
Cite this Source
Plug up and Obstruct. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/obstruct/plug_up
Obstruct & Plug up. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/obstruct/plug_up>.
Plug up or Obstruct. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/obstruct/plug_up.
Google Ngram Viewer shows how "obstruct" and "plug up" have occurred on timeline