Concern
Concern noun - A commercial or industrial activity or organization.
Obstruction and concern are semantically related. In some cases you can use "Obstruction" instead a noun "Concern".
Obstruction
Obstruction noun - Something that makes movement or progress difficult.
Concern and obstruction are semantically related. Sometimes you can use "Concern" instead a noun "Obstruction".
How words are described
Cite this Source
Obstruction and Concern. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/concern/obstruction
Concern & Obstruction. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/concern/obstruction>.
Obstruction or Concern. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/concern/obstruction.
Google Ngram Viewer shows how "concern" and "obstruction" have occurred on timeline