noun
president's office; director's office
Refers to the physical office room of a company president or director. The exact title depends on the organization's structure.
社長室で重要な会議が行われた。
An important meeting was held in the president's office.
彼は社長室に呼ばれた。
He was called to the director's office.
会長室 is the chairman's office, typically a higher or separate position from 社長.
Compound of 社長 (company president/director) + 室 (room).