Webster's Revised Unabridged Dictionary · 1913

Tournament

Tournament , noun

[Old English turnement, tornement, Old French torneiement, tornoiement, French tournoiement a turning or wheeling round. See Tourney.]

1.
A mock fight, or warlike game, formerly in great favor, in which a number of combatants were engaged, as an exhibition of their address and bravery; hence, figuratively, a real battle.
In battle and in tourneyment. — Chaucer
With cruel tournament the squadrons join. — Milton

It different from the joust, which was a trial of skill between one man and another.

2.
Any contest of skill in which there are many contestents for championship; as, a chess tournament.