图
tú · HSK 3
diagram
🖼️ 图 = enclosure 囗 around a sketch; tú sounds like 'too' as in 'too pretty to draw'
The outer 囗 frames the content, much like a picture frame bounds a drawing or map. Modern 图 is the simplified form of 圖, which originally depicted a bordered region with markings inside — a chart or map.
图 — enclosure 囗 + 冬 (simplified from 啚)
Originally written 圖, showing an enclosure 囗 around 啚, a depiction of a granary or rural settlement on a map. The whole character meant a map or chart of demarcated territory. Meaning later broadened to picture, diagram, or to plan/scheme.