noun
secretary (government); director; chief
Refers to the head of a government agency or bureau, such as 官房長官 (Chief Cabinet Secretary) or 事務次官級の長官. Not a general term for company directors.
官房長官が記者会見を行った。
The Chief Cabinet Secretary held a press conference.
彼は環境省の長官に任命された。
He was appointed director of the Environment Agency.