Definition of proponent | Bee Dictionary of English

The new President is a strong proponent of renewable sources of energy and has pledged a lot of money for the research of clean energy sources.
Again, the board bought the story of people like Lehigh University biologist Michael Behe, an ID proponent, who says that ID doesn't assume the existence of God (although Behe .
Says the dome's chief proponent, Community Development Director Mark Tigan: "It would be the ultimate in Yankee ingenuity.

Mozilla Launches Petition Telling The NSA To Stop Watching Us
Mozilla has always been a staunch proponent of privacy. Its position hasn’t won the non-profit a lot of corporate friends, and its next move won’t win it many friends in government either. A bunch of privacy loving Web companies, including …
June 12, 2013 - WebProNews
Signing of HB5 Just a Beginning
Dallas — Tom Pauken, Republican candidate for Governor and a leading proponent of reform of our public education system in Texas, applauded the signing of House Bill 5 into law.
June 11, 2013 - The Gilmer Mirror
Security contractor was determined to shine a light
Edward Snowden, who has dropped out of sight after disclosing U.S. intelligence secrets, became a firm proponent of civil liberties while working for the NSA. WASHINGTON — He was a high school dropout, sometime junior college student and failed Army recruit.
June 11, 2013 - Los Angeles Times

Vice President Dick Cheney in AFP
I was and remain a strong proponent of our enhanced interrogation program. The interrogations were used on hardened terrorists after other efforts had failed,said Cheney.
Pope Benedict XVI in Canada.com
This humanity of the 21st century appears as sure and self-sufficient master of its own destiny, the avid proponent of uncontested triumphs,the Pope added.
Barack Obama in Abilene Reporter-News
As he told the AFL-CIO in 2003: "I happen to be a proponent of single payer, universal health care coverage ...... That's what I'd like to see."