名詞 champion:

1. someone who has won first place in a competition
   同義詞：champ, title-holder
2. someone who fights for a cause
   同義詞：fighter, hero, paladin
3. a person who backs a politician or a team etc.
   同義詞：supporter, protagonist, admirer, booster, friend
4. someone who is dazzlingly skilled in any field
   同義詞：ace, adept, sensation, maven, mavin, virtuoso, genius, hotshot, star, superstar, whiz, whizz, wizard, wiz

動詞 champion:

1. protect or fight for as a champion
   同義詞：defend

形容詞 champion:

1. holding first place in a contest
   同義詞：prizewinning

1. My boss asked me to write a profile for the new tennis champion.
   我上司讓我給這位新網球冠軍寫篇小傳。
2. It's a civic pride to have a champion.
   擁有世界冠軍是我們每個公民的驕傲。
3. The champion is in training for his next fight.
   這位冠軍為了下一場比賽正在進行訓練。
4. The little girl presented the champion with a victory garland.
   小女孩給冠軍獻上了勝利的花環(huán)。
5. He is the undisputed champion.
   他是無可爭辯的冠軍。
6. Every absurdity have a champion to defend it.
   任何謬論都擁有擁護它的斗士。
7. The leader of a cause; a champion.
   領導者一項事業(yè)的領導; 擁護者
8. He was the world tennis champion.
   他曾是世界網球冠軍。

cham.pi.on

n.（名詞）
One that wins first place or first prize in a competition.
冠軍：在競賽中得第一名或一等獎的人
One that is clearly superior or has the attributes of a winner:
優(yōu)勝者：出類拔萃的人或有必勝決心的人：
例句：
a champion at teaching.
教學能手

An ardent defender or supporter of a cause or another person:
支持者：一項事業(yè)或他人的熱情捍衛(wèi)者或支持者：
例句：
a champion of the homeless.
無家可歸者的聲援者

One who fights; a warrior.
斗爭者；戰(zhàn)士
v.tr.（及物動詞）
cham.pi.oned,cham.pi.on.ing,cham.pi.ons
To fight for, defend, or support as a champion:
作為積極的擁護者而斗爭、捍衛(wèi)或支持：
例句：
championed the cause of civil rights.See Synonyms at support
為民權事業(yè)而斗爭參見 support

Obsolete To defy or challenge.
【廢語】 抵抗：公然不顧或挑戰(zhàn)
adj.（形容詞）
Holding first place or prize:
得第一名的，一等獎的：
例句：
a champion show dog.
得一等獎的參展狗

Superior to all others:
勝過的：高于所有其他的：
例句：
.the champion playboy of the Western World.(John Millington Synge)
.西方世界最佳的花花公子.(約翰·米林頓·辛格)

來源：
Middle English champioun [combatant, athlete]
中古英語 champioun [斗士，運動員]
from Old French champion
源自 古法語 champion
from Medieval Latin campiô campiôn-
源自 中世紀拉丁語 campiô campiôn-
from Latin campus [field]
源自 拉丁語 campus [場地]