Capital
Capital adjective - Coming before all others in importance.
Usage example: the capital goal of the effort is to assimilate the new immigrants
Central is a synonym for capital in principal topic. In some cases you can use "Central" instead the word "Capital" as an adjective or a noun, when it comes to topics like main.
Mutual synonyms
Cite this Source
Central and Capital. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/capital/central
Capital & Central. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/capital/central>.
Central or Capital. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/capital/central.
Google Ngram Viewer shows how "capital" and "central" have occurred on timeline