enemy
US /ˈen.ə.mi/
UK /ˈen.ə.mi/

1.
enemigo, adversario
a person who is actively opposed or hostile to someone or something
:
•
He made many enemies during his political career.
Hizo muchos enemigos durante su carrera política.
•
The two countries have been enemies for decades.
Los dos países han sido enemigos durante décadas.