• 司会しかい — host, moderator
• 司祭しさい — priest
• 司法しほう — judiciary, justice
• 司令しれい — command, control
• 上司じょうし — boss, superior
• 司つかさどる — to govern, to be in charge of

Originally shaped like a divine figure descending from heaven to give commands. It symbolizes a role of control or direction, often tied to speech and authority. The radical 口くち reflects the use of voice in administration or ceremony.

彼かれは 会議かいぎの司会しかいをつとめました。
He served as the moderator of the meeting.

司令官しれいかんが 命令めいれいを出しました。
The commander issued the order.

上司じょうしに 報告ほうこくをしました。
I reported to my boss.

🎧 シ is the onyomi used in most compound words. The kunyomi つかさどる is used less commonly and typically in more formal or literary contexts.