duelnoun/ˈˈd͡ʒuːəl/

• 1

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

  • I have often thought since, how different my fate might have been, had I not fallen in love with Nora at that early age; and had I not flung the wine in Quin’s face, and so brought on the duel.
  • Of course, not all the Railway Members were men of such talent. One member was "chiefly eminent as a whist player," and another was known for his duel with a fellow M.P. fought at Wormwood Scrubs in 1840.
• 2

  Historically, the wager of battle (judicial combat).

• 3

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

  • a sniper duel
  • But it leaves them with a few destroyers, the American destroyer force is falling back, and then you have the two cruiser lines with their respective battleships coming in for the big duel.

duelverb/ˈˈd͡ʒuːəl/

• 1

  To engage in a battle.

  • The two dogs were duelling for the bone.
  • The country’s fencing federation has officially recognised lightsaber duelling as a competitive sport, granting the weapon from George Lucas’s space saga the same status as the foil, epee and sabre, the traditional blades used at the Olympics.