Champion

Champion - (Easton's Bible Dictionary)

(1 Sam. 17:4, 23), properly "the man between the two," denoting the position of Goliath between the two camps. Single combats of this kind at the head of armies were common in ancient times. In ver. 51 this word is the rendering of a different Hebrew word, and properly denotes "a mighty man."

Champion - (Webster's 1828 Dictionary)

CHAMPION, n.

1. A man who undertakes a combat in the place or cause of another.

2. A man who fights in his own cause in a duel.

3. A hero; a brave warrior. Hence, one who is bold in contest; as a champion for the truth.

CHAMPION, v.t. To challenge to a combat.