- champion, prizewinning - holding first place in a contest; "a champion show dog"; "a prizewinning wine"
Antonym: worst (indirect, via best)
- champion, champ, title-holder - someone who has won first place in a competition
--1 is a kind of rival, challenger, competitor, competition, contender
--1 has particulars: record-breaker, record-holder - champion, fighter, hero, paladin - someone who fights for a cause
--2 is a kind of defender, guardian, protector, shielder
Derived form: verb champion1 - supporter, protagonist, champion, admirer, booster, friend - a person who backs a politician or a team etc.; "all their supporters came out for the game"; "they are friends of the library"
--3 is a kind of advocate, advocator, proponent, exponent
--3 has particulars:Derived form: verb champion1 - ace, adept, champion, sensation, maven, mavin, virtuoso, genius, hotshot, star, superstar, whiz, whizz, wizard, wiz - someone who is dazzlingly skilled in any field
--4 is a kind of expert
--4 has particulars: track star