proponent

proponent

CEFR: C1-C2 /pro-po-nent/ [p.r.ah0.p.ow1.n.ah0.n.t]

Proponent means someone who is in favor of something.

Example Sentences:
She has always been a strong proponent of women’s rights.
He was identified as a leading proponent of the values of progressive education.​
He is a leading proponent of gun control.
You might be a proponent of longer vacations, but your parents are proponents of a longer school year.