腐 is built from the 广 (house on a cliff), 付, and 肉 components.
It reads フ like 付, as do 府 and 符 — learn 付 once and the family's reading comes with it.
A common word using 腐 is 腐る (くさる), meaning “to rot, to go bad”.
Kanji that look similar include 廉, 慶, 摩, and 廃.
