shì clan; family name

Forms

• 氏 free — Standalone form, used as a character on its own.
• 氏 right — Written on the right as the sound component of characters such as 纸.

Characters that use it as a component

纸昏

Characters filed under it as a radical

Kangxi radical no.83 · 4strokes — The 214 Kangxi radicals

Filed under it in a dictionary. That is a lookup convention — it does not mean it is the only part the character is built from.

氏民氓