The kanji 司 primarily conveys the idea of "to control," "to manage," "to administer," or "to be in charge of." It suggests a position of authority or responsibility, often related to leadership or overseeing a particular task or domain. It implies having jurisdiction or the power to direct and regulate.

・On-yomi (音読み): シ (shi) ・Kun-yomi (訓読み): つかさどる (tsukasado)ru) - to control, to govern, to administer

⚫︎ 社長（しゃちょう） Translation: Company president; CEO (the person who manages and is in charge of the company) ⚫︎ 司会（しかい） Translation: Master of ceremonies; MC (the person who controls and manages a meeting or event) ⚫︎ 司書（ししょ） Translation: Librarian (the person who manages and is in charge of a library)

The kanji 司 is a pictograph. It depicts a hand 卩 holding a mouth 口 or a container. The hand represents control, and the mouth/container symbolizes the area or things that are being controlled, implying management or governance. The character evolved over time, solidifying its association with authority and administration.