1. A prearranged, formal combat between two persons, usually fought to settle a point of honor.
2. A struggle for domination between two contending persons, groups, or ideas.
3. to engage (another) in or as if in formal combat.
4. to oppose actively and forcefully.
5. to engage in or as if in formal combat.

1. arranged, regular combat between two private persons, often over a matter of honor.
2. historically, the wager of battle (judicial combat)
3. any struggle between two contending persons, groups or ideas.
4. to engage in a duel.

1. A combat between two persons, fought with deadly weapons, by agreement. it usually arises from an injury done or an affront given by one to the other.
2. to fight in single combat.

1. A single combat; specifically, a premeditated and prearranged combat between two persons with deadly weapons, and usually in the presence of at least two witnesses, called seconds, for the purpose of deciding a quarrel, avenging an insult, or clearing the honor of one of the combatants, or of some third party whose cause he champions.
2. any fight or contest between two parties; especially, a military contest between parties representing the same arm of the service.

1. a prearranged fight with deadly weapons by two people (accompanied by seconds) in order to settle a quarrel over a point of honor
2. any struggle between two skillful opponents (individuals or groups)
3. fight a duel, as over one's honor or a woman