塀
へい · hei · JLPT N3 · noun
wall
🧱 塀 = 土 earth + 屏 screen: an earthen screen, so a wall or fence
Sound hook: hei sounds like hey!, what you call out to a neighbour over the fence. 屏 is also read hei and means a screen or barrier, so the right side gives you both the sound and the idea, and 土 adds what the wall is made of.