Frank Church was an American politician and senator who left an indelible mark on American politics. Synonyms for Frank Church could include "statesman", as his contributions to public service were profound and impactful. Another synonym could be "advocate", as he passionately fought for civil rights, social justice, and environmental conservation. Church's name is also synonymous with "progressive", as his policies aimed to create a fairer and more equitable society. Lastly, "pioneer" is an apt synonym for Frank Church, as he fearlessly championed causes that were not always popular, paving the way for future generations of leaders to follow in his footsteps.