Extensions
Supplement and extensions are semantically related. in enlargement topic. In some cases you can use "Supplement" instead a noun "Extensions".
Supplement
Supplement noun - Something added (as by growth).
Extensions and supplement are semantically related. Sometimes you can replace term "Extensions" with "Supplement", this nouns are similar.
Cite this Source
Supplement and Extensions. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/extensions/supplement
Extensions & Supplement. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/extensions/supplement>.
Supplement or Extensions. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/extensions/supplement.
Google Ngram Viewer shows how "extensions" and "supplement" have occurred on timeline