champion
US /ˈtʃæm.pi.ən/
UK /ˈtʃæm.pi.ən/

1.
campeão, vencedor
a person who has defeated all rivals in a competition or game
:
•
She is the reigning world champion in tennis.
Ela é a atual campeã mundial de tênis.
•
The team became league champions for the first time.
O time se tornou campeão da liga pela primeira vez.
2.
defensor, apoiador
a person who actively supports or defends a cause
:
•
She has always been a strong champion of human rights.
Ela sempre foi uma forte defensora dos direitos humanos.
•
He became a champion for environmental protection.
Ele se tornou um defensor da proteção ambiental.
1.
defender, apoiar
to support the cause of; defend
:
•
He decided to champion the rights of the underprivileged.
Ele decidiu defender os direitos dos menos privilegiados.
•
The organization continues to champion environmental causes.
A organização continua a defender as causas ambientais.