editor-in-chief; chief editor
A senior person responsible for a publication's editorial direction, especially in newspaper, magazine, or publishing contexts. More institutional and title-like than a general word for an editor.
He serves as editor-in-chief at that newspaper company.
The appointment of the new editor-in-chief was announced.
He serves as the editor-in-chief of a major newspaper company.
In recognition of her years of achievements, she became editor-in-chief.
編集者 refers broadly to any editor, whereas 主筆 specifically denotes the chief editor in charge of editorial direction.
主筆 refers to the top editorial writer of a newspaper, while 主幹 is the overall chief editor with broader managerial authority.
As a job title for a person, it is counted with the person counter.
Sino-Japanese compound read with on-yomi: 主 means main or chief, and 筆 is associated with writing or the pen. The compound conventionally refers to the chief person responsible for a publication's writing or editorial direction.