enemy
US /ˈen.ə.mi/
UK /ˈen.ə.mi/

1.
nemico, avversario
a person who is actively opposed or hostile to someone or something
:
•
He made many enemies during his political career.
Ha fatto molti nemici durante la sua carriera politica.
•
The two countries have been enemies for decades.
I due paesi sono stati nemici per decenni.