Extra charge
Supplement and extra charge are semantically related. In some cases you can use "Supplement" instead a noun phrase "Extra charge".
Supplement
Supplement noun - Something added (as by growth).
Extra charge and supplement are semantically related. Sometimes you can use "Extra charge" instead a noun "Supplement".
Cite this Source
Supplement and Extra charge. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/extra_charge/supplement
Extra charge & Supplement. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/extra_charge/supplement>.
Supplement or Extra charge. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/extra_charge/supplement.
Google Ngram Viewer shows how "extra charge" and "supplement" have occurred on timeline