cham·pi·on 
(chămpē-ən)
(chămpē-ən)n.
1. One that wins first place or first prize in a competition.
2. One that is clearly superior or has the attributes of a winner: a champion at teaching.
3. An ardent defender or supporter of a cause or another person: a champion of the homeless.
4. One who fights; a warrior.
tr.v. cham·pi·oned, cham·pi·on·ing, cham·pi·ons
1. To fight for, defend, or support as a champion: championed the cause of civil rights. See Synonyms at support.
2. Obsolete To defy or challenge.
adj.
1. Holding first place or prize: a champion show dog.
2. Superior to all others: "the champion playboy of the Western World" (John Millington Synge).
[Middle English champioun, combatant, athlete, from Old French champion, from Medieval Latin campiō, campiōn-, from Germanic *kampjō, fighter, warrior, from *kampjan, to do battle, fight, from *kampaz, field of battle, battle, from Latin campus, field; see CAMPUS.]
- polymorph
- polymorphic
- polymorphism
- polymorphonuclear
- polymorphous
- polymorphously
- polymorphous perverse
- polymyxin
- Polynesia
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- polyneuritic
- polyneuritis
- Polynices
- polynomial
- polynuclear aromatic hydrocarbon
- polynucleotide
- polynya
- polyomavirus
- polyp
- polyparium
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- Polypay
- polypeptide
- polypetalous
- polyphagia