One
One adjective - Being the one or ones of a class with no other members.
Usage example: that's the one author I would stand in line for hours to get an autograph from
Solo
Solo adjective - Not being in the company of others.
Mutual synonyms
Cite this Source
Solo and One. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/one/solo
One & Solo. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/one/solo>.
Solo or One. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/one/solo.
Google Ngram Viewer shows how "one" and "solo" have occurred on timeline