I. du ‧ el 1 /ˈdjuːəl $ ˈduːəl/ BrE AmE noun [countable]
[ Date: 1400-1500 ; Language: Medieval Latin ; Origin: duellum , from (influenced by duo 'two' ) Latin bellum 'war' ]
1 . a fight with weapons between two people, used in the past to settle a quarrel:
The officer challenged him to a duel.
2 . a situation in which two people or groups are involved in an angry disagreement:
a verbal duel
II. duel 2 BrE AmE verb ( past tense and past participle duelled , present participle duelling British English , dueled , dueling American English ) [intransitive]
to fight a duel