Master
Master adjective - Coming before all others in importance.
Usage example: thought of themselves as belonging to humanity's master race
Main is a synonym for master in principal topic. In some cases you can use "Main" instead the word "Master" as an adjective or a noun, when it comes to topics like characteristic, fundamental. popular alternative
Main
Main adjective - Coming before all others in importance.
Usage example: this is the main point of the study—everything else is secondary
Master is a synonym for main in principal topic. You can use "Master" instead the word "Main" as an adjective or a noun, if it concerns topics such as fundamental. popular alternative
Mutual synonyms
How words are described
Cite this Source
Main and Master. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/master/main
Master & Main. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/master/main>.
Main or Master. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/master/main.
Google Ngram Viewer shows how "master" and "main" have occurred on timeline