American Heritage Dictionary
(1)
Century Dictionary
(3)
GNU Webster's 1913
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WordNet
(1)
Elsewhere on the web
But I'm also to a great degree a natural rights proponent, and this is the arena in which that often comes into direct conflict.— The Crossed Pond
A strong proponent is a close friend of Obama's, Gov.— Hub Politics
It had the courage to announce the done deal regarding final selection of a proponent, and to do so while not having permission to lift the conditions restricting the zoning and land use of the Britannia Farm property held in trust by the PDSB.— Mississauga News
Amazon was an early cloud computing proponent, and the company now has one of the market's longest menu of services.— Computerworld
Hendricks is a big wireless proponent, and his consulting firm helps companies working in new and interesting areas, including ultrawideband (UWB), which could be spread-spectrum's successor for data transmission.— Wi-Fi Networking News

American Heritage Dictionary (1)
Century Dictionary (1)
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