proponent

Entrepreneur Vivek Wadhwa is a vocal proponent of gender diversity.

The renowned theoretical physicist has for years been a proponent of real-life, NASA-led interstellar travel.

As a big proponent of both comprehensive vaccination for children and water fluoridation, that implicates me in two of them.

The government of Borno State has been a proponent of the Civilian JTF.

Yes, I was a proponent of the Vietnam War for many years, as was almost the entire national security community.

Vincent St. John was also interested as a proponent of this plan.

In all debates the proponent has the right of opening and closing.

If this bald statement required elucidation or expansion, its proponent didn't seem to realize the fact.

He also is a proponent of the idea that hypnosis is an abnormal manifestation of a normal process, an opinion he shares with many.

That is when he wrote it, and he let the proponent in this case have it.