(soccer) The highest-level European club football (soccer) tournament, organised by UEFA.

plural of world champion

The best result data among many experiments with uncontrolled variations.

plural of breakfast of champions

Foremost champion; most prominent or important defender.

Alternative form of champion-in-chief

(tennis) An extension of a tiebreak (sometimes played instead of a deciding set) in which the winner is the first player to reach ten points and lead by a margin of two

(business) A relatively small and little-known but highly successful company.

plural of hidden champion

The competitor who finishes second; runner-up.