John L. Lewis was a prominent figure in American labor history, known for his leadership in the United Mine Workers of America as well as his formation of the Congress of Industrial Organizations. Synonyms for John L. Lewis could include labor leader, union organizer, social activist, influential advocate for workers' rights, and champion for the working class. Known for his powerful oratory and strong leadership skills, John L. Lewis played a pivotal role in shaping labor rights and protections in the United States. He is remembered as a trailblazer and a symbol of the American labor movement.