Reduction
Reduction noun - The amount by which something is lessened.
Usage example: saw an 11% reduction in the number of students applying to the school
Supplement
Supplement noun - Something added (as by growth).
Usage example: this new rule restricting e-mail to job-related activity is only a supplement to the preexisting policy regarding personal use of company resources
Reduction is an antonym for supplement.
How words are described
Cite this Source
Supplement and Reduction. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/reduction/supplement
Reduction & Supplement. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/reduction/supplement>.
Supplement or Reduction. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/reduction/supplement.
Google Ngram Viewer shows how "reduction" and "supplement" have occurred on timeline