First
First adjective - Coming before all others in time or order.
Usage example: the much-studied first—and last—voyage of the Titanic
Prime is a synonym for first in original topic. In some cases you can use "Prime" instead the word "First" as an adjective or a noun, when it comes to topics like foremost, comparison, start, top. popular alternative
Nearby Word: firstly
Prime
Prime adjective - Highest in rank or authority.
Usage example: the prime strategist in the senator's presidential campaign
First is a synonym for prime in original topic. You can use "First" instead the word "Prime" as an adjective or a noun, if it concerns topics such as comparison, position, start, main. popular alternative
Mutual synonyms
How words are described
Cite this Source
Prime and First. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/first/prime
First & Prime. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/first/prime>.
Prime or First. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/first/prime.
Google Ngram Viewer shows how "first" and "prime" have occurred on timeline