Authority
Authority noun - A person with a high level of knowledge or skill in a field.
Usage example: the leading authority on neural anatomy
Buff is a synonym for authority in expert topic. In some cases you can use "Buff" instead a noun "Authority", when it comes to topics like walking encyclopedia. informal substitute
Mutual synonyms
Related pairs
How words are described
Cite this Source
Buff and Authority. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/authority/buff
Authority & Buff. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/authority/buff>.
Buff or Authority. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/authority/buff.
Google Ngram Viewer shows how "authority" and "buff" have occurred on timeline