External wall
Outer wall and external wall are semantically related. In some cases you can use "Outer wall" instead a noun "External wall".
Outer wall
External wall and outer wall are semantically related. You can use "External wall" instead a noun phrase "Outer wall".
Mutual synonyms
Cite this Source
Outer wall and External wall. (2017). Retrieved 2026, August 14, from https://thesaurus.plus/related/external_wall/outer_wall
External wall & Outer wall. N.p., 2017. Web. 14 Aug. 2026. <https://thesaurus.plus/related/external_wall/outer_wall>.
Outer wall or External wall. 2017. Accessed August 14, 2026. https://thesaurus.plus/related/external_wall/outer_wall.
Google Ngram Viewer shows how "external wall" and "outer wall" have occurred on timeline