• 庶民しょみん — ordinary people; the public
• 庶務しょむ — general affairs; administrative duties
• 庶子しょし — a child of a secondary wife or concubine
• 庶出しょしゅつ — birth to a secondary wife or concubine

庶 combines the shelter-like radical 广 with a component suggesting heat and cooking. From the image of many things simmering together, it came to mean “various,” and later, “the ordinary people.”