Tra từ champion - Từ điển Oxford Advanced Learner 8th

cham·pion [champion champions championed championing] noun, verb BrE [ˈtʃæmpiən] NAmE [ˈtʃæmpiən]
noun
1. a person, team, etc. that has won a competition, especially in a sport
•the world basketball champions
•a champion jockey/boxer/swimmer
•the reigning champion (= the person who is ↑champion now)
2. ~ (of sth) a person who fights for, or speaks in support of, a group of people or a belief
•She was a champion of the poor all her life.

Word Origin:
Middle English (denoting a fighting man): from Old French, from medieval Latin campio(n-) ‘fighter’, from Latin campus ‘level ground’, specifically applied to the Campus Martius in Rome, used for games, athletic practice, and military drill..

Example Bank:
•The reigning champion will defend her title tonight.
•The two winners will move onto a one-game final to determine the champion.
•the Olympic skating champion
•He became a leading champion for victims of miscarriages of justice.
•He was the undisputed heavyweight champion of the world.
•She became best known as a vigorous champion of the rail link.
•She is a former Olympic skating champion.
•The double world sprint champion has been banned for drug-taking.
•The race was won by the Irish champion jockey, Michael Kinane.

verb ~ sth
to fight for or speak in support of a group of people or a belief
•He has always championed the cause of gay rights.
Verb forms:

Word Origin:
Middle English (denoting a fighting man): from Old French, from medieval Latin campio(n-) ‘fighter’, from Latin campus ‘level ground’, specifically applied to the Campus Martius in Rome, used for games, athletic practice, and military drill..

Example Bank:
•A local trust has been set up to champion the restoration of the landscape.