You can't
have a DUEL.
The Big Bang Theory Season 5, Episode 17
He almost killed Petyr in a DUEL.
Game of Thrones Season 4, Episode 5
Do you know what I learned,
losing that DUEL?
Game of Thrones Season 1, Episode 7
They shoved each other
and threatened to DUEL
Game of Thrones Season 5, Episode 3
I see no other option than
to challenge you to a DUEL.
The Big Bang Theory Season 5, Episode 17