1. [n]  any struggle between two skillful opponents (individuals or groups)
2. [n]  a prearranged fight with deadly weapons by two people (accompanied by seconds) in order to settle a quarrel over a point of honor
3. [v]  fight a duel, as over one's honor or a woman; "In the 19th century, men often dueled over small matters"

1. \Du"el\, n. [It. duello, fr. L. duellum, orig., a contest
   between two, which passed into the common form bellum war,
   fr. duo two: cf. F. duel. See {Bellicose}, {Two}, and cf.
   {Duello}.]
   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.
   {Trial by duel} (Old Law), a combat between two persons for
      proving a cause; trial by battel.
   

2. \Du"el\, v. i. & t.
   To fight in single combat. [Obs.]
   

A front end to gdb by Michael Golan <[email protected]>. DUEL implements a language designed for debugging C programs. It mainly features efficient ways to select and display data items. It is normally linked into the gdb executable, but could stand alone. It interprets a subset of C in addition to its own language.

Version 1.10.