Zar (en. Czar)
/θar/
Slang Meanings
A person with a lot of power in a particular context.
He is the czar of technology in this company.
Él es el zar de la tecnología en esta empresa.
Someone who runs everything with an iron fist.
Don't dare to argue, the czar here is him.
No te atrevas a discutir, aquí el zar es él.