岸 is built from the 山, 厂 (cliff), and 干 components.
It reads ガン like 干, as do 幹, 刊, 肝, and 汗 — learn 干 once and the family's reading comes with it.
A common word using 岸 is 海岸 (かいがん), meaning “coast, seashore”.
Kanji that look similar include 岩, 岬, 岳, and 岐.
