dueling

US /ˈduː.əl.ɪŋ/
UK /ˈduː.əl.ɪŋ/
1.

đấu tay đôi

the activity of taking part in duels (= formal fights between two people, using weapons, usually because one person has insulted the other):

:
The church increasingly pressed kings to outlaw dueling and other forms of trial by combat.
1.

đấu tay đôi

taking part in or relating to the activity of dueling:

:
a pair of dueling pistols