1 : a grammatical number category referring to two items or units as opposed to one item (singular) or more than two items (plural); "ancient Greek had the dual form but it has merged with the plural form in modern Greek"
2 : consisting of or involving two parts or components usually in pairs; "an egg with a double yolk"; "a double (binary) star"; "double doors"; "dual controls for pilot and copilot"; "duple (or double) time consists of two (or a multiple of two) beats to a measure"
verbe
1 : fight a duel, as over one's honor or a woman
nom
1 : any struggle between two skillful opponents (individuals or groups)
2 : a prearranged fight with deadly weapons by two people (accompanied by seconds) in order to settle a quarrel over a point of honor
