First
First adjective - Coming before all others in importance.
Usage example: there are a number of reasons we can't go, but the first is that we don't have the money
Main is a synonym for first in characteristic topic. In some cases you can use "Main" instead the word "First" as an adjective or a noun, when it comes to topics like principal, important, supreme, chief.
Nearby Word: firstly
Main
Main adjective - Coming before all others in importance.
Usage example: this is the main point of the study—everything else is secondary
First is a synonym for main in principal topic. You can use "First" instead the word "Main" as an adjective or a noun, if it concerns topics such as characteristic, important, supreme, chief.
Mutual synonyms
How words are described
Cite this Source
Main and First. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/first/main
First & Main. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/first/main>.
Main or First. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/first/main.
Google Ngram Viewer shows how "first" and "main" have occurred on timeline