Synonyms of champion in English:

champion


See definition of champion

noun

1‘the world snooker champion’

SYNONYMS
winner, title-holder, defending champion, gold medallist
prizewinner, cup winner, victor, conqueror
victor ludorum
US titlist
informal champ, top dog, number one

2‘a champion of change’

SYNONYMS
advocate, proponent, promoter, proposer, supporter, standard-bearer, torch-bearer, defender, protector, upholder, backer, exponent, patron, sponsor, prime mover
pleader for, campaigner for, propagandist for, lobbyist for, fighter for, battler for, crusader for, apologist for
apostle, evangelist, missionary
North American booster
informal plugger
ANTONYMS

opponent, critic

3‘there was little chance of his defeating the King's Champion’

SYNONYMS
knight, man-at-arms, warrior, defender, duellist, paladin, hero

verb

1‘an organization championing the rights of tribal peoples’

SYNONYMS
advocate, promote, plead for, hold a torch for, defend, protect, uphold, support, back, espouse, ally oneself with, stand behind, stand up for, take someone's part, campaign for, lobby for, fight for, battle for, crusade for, take up the cudgels for
propose, sponsor, vouch for, second
informal stick up for, throw one's weight behind, plug
ANTONYMS

oppose, criticize