隅
すみ · sumi · JLPT N4 · noun
corner
📐 sumi: you SUM up a room by counting its corners
Sumi starts like the English word sum. A room sums to four corners, so sum-i = corner. Same sound as 墨 (sumi, ink) but a different word; 隅 is the inside corner or nook of a space, as in 隅っこ (sumikko).