Dictionary.com
Thesaurus.com

Protagoras

American  
[proh-tag-er-uhs] / proʊˈtæg ər əs /

noun

  1. c480–c421 b.c., Greek Sophist philosopher.


Protagoras British  
/ prəʊˈtæɡəˌræs /

noun

  1. ?485–?411 bc , Greek philosopher and sophist, famous for his dictum "Man is the measure of all things."

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

At one point the author even calls Pericles the “pupil” of Protagoras.

From The Wall Street Journal Apr. 10, 2026

Indeed, one of the most prominent Sophists, Protagoras, is a main character in the dialogue that bears his name.

From Textbooks Jun. 15, 2022

You know, it goes back to Plato’s Protagoras.

From The New Yorker Oct. 28, 2019

At one particularly erudite confrontation, the movie director Michelangelo Antonioni is pitted against an unprepossessing old woman; still another requires the group’s mysterious leader, known as the Great Protagoras, to face an upstart challenger.

From Washington Post Aug. 22, 2017

According to one tradition, when the philosopher Protagoras was convicted on charges of heresy, his books were dumped in the city marketplace and burned.

From "Circumference" by Nicholas Nicastro

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training