The Vietnamese word "hách" is an adjective that can be translated to English as "authoritarian" or "authoritative." It is used to describe someone who has a strong control over others, often in a strict or commanding manner.
Cô giáo của chúng tôi rất hách.
(Our teacher is very authoritarian.)
Ông ấy có vẻ hách khi làm việc với nhân viên.
(He seems very domineering when working with employees.)
"Hách" describes a person who is authoritarian or overly controlling.