champion

noun
B1
1
B1
a person, team, etc. that has won a competition, especially in a sport
قهرمان, برنده
2
a person who fights for, or speaks in support of, a group of people or a belief
حامی, مدافع, پشتیبان, مدافع منافع
She was a long-term champion of animal rights and environmental protection.
verb
1
to fight for or speak in support of a group of people or a belief
دفاع کردن از, حمایت کردن از, پشتیبانی کردن از, طرفداری کردن