duel
du‧el1 /ˈdjuːəl $ ˈduːəl/ 
noun [countable]
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
duel2 verb (past tense and past participle duelled, present participle duelling British English, dueled, dueling American English) [intransitive]
to fight a duel
| I |
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:Language: Medieval Latin
Origin: duellum, from (influenced by duo 'two') Latin bellum 'war'
2. a situation in which two people or groups are involved in an angry disagreement:
| II |
verb (past tense and past participle duelled, present participle duelling British English, dueled, dueling American English) [intransitive]to fight a duel