assassin
US /əˈsæs.ən/
UK /əˈsæs.ən/

1.
asesino, sicario
a murderer of an important person, typically a political or prominent figure, for political or religious reasons.
:
•
The police are searching for the assassin of the president.
La policía está buscando al asesino del presidente.
•
He was hired as a professional assassin.
Fue contratado como asesino profesional.