champion /ˈt͡ʃæm.pi.ən/noun 5adjective 3verb 2forms 4 noun5 •someone who won a competition and still holds the top place until another person beats themThe defending champion is expected to defeat his challenger. •Someone who fights for a cause or status.Emmeline Pankhurst was a champion of women's suffrage. •Someone who fights on another's behalf. •Someone who is chosen to represent a group of people in a contest.Barcelona is eligible to play in FIFA Club World Cup as the champion of Europe. •A particularly notable member of a plant species, such as one of great size.There was a news clipping there with a photo of a magnificent American elm, which had just been named the champion for its species, the largest of its kind. — 2013 adjective[before a noun]3 •Acting as a champion; having defeated all one's competitors. •Excellent; beyond compare. •[after a verb] (dialect, UK) Excellent; brilliant; superb; deserving of high praise."That rollercoaster was champion," laughed Vinny. verb2 •To promote, advocate, or act as a champion for (a cause, etc.).While obviously championing the Bluebell [Railway], Beardmore is keen for the 'big railway' to consider utilising what preserved railways can provide. — 2024 •(no longer used) To challenge. formschampioned · championing · championeth · champions