No, if it was very different like DUAL or DUVEL you would know it meant DUAL but duel or dual is different. BIG time, not just spelling and meaning.

DUEL
Having weapons for dueling, or for fighting each other.


DUAL

Having 2 weapons.


DUVEL

A beer, IIRC.


Actually I think this is correct, but might not be. Its late, I have a headache, and aren't thinking corectly.