(1)fight a duel, as over one's honor or a woman; "In the 19th century, men often dueled over small matters"
(2)その人の名誉または女性をめぐって決闘を行う
(1)In the 19th century, men often dueled over small matters
(2)19世紀に、男性は、小さなことでしばしば決闘した