Dam and Obstruct

Dam

Dam verb - To prevent passage through by filling with something.
Usage example: ice floes were damming the river

Obstruct is a synonym for dam in block topic. In some cases you can use "Obstruct" instead a verb "Dam", when it comes to topics like hold back, open, block 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

Dam is a synonym for obstruct in hold back topic. You can use "Dam" instead a verb "Obstruct", if it concerns topics such as open.

Common collocations

flow dam flow obstruct flow
Cite this Source
Obstruct and Dam. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/dam/obstruct
Dam & Obstruct. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/dam/obstruct>.
Obstruct or Dam. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/dam/obstruct.
Google Ngram Viewer shows how "dam" and "obstruct" have occurred on timeline