What is the meaning of Duel?

Arranged, regular combat between two private persons, often over a matter of honor.

Historically, the wager of battle (judicial combat).

Any battle or struggle between two contending persons, forces, groups, or ideas.

To engage in a battle.

duel

duel

a duel

dual (having two components)

duel (battle)

dual

sadness; grief; sorrow

duel

Source: wiktionary.org