亩
mǔ · HSK 7
field
🌾 Holds 田 (field); sounds like a cow's moo grazing one 亩 of farmland
亩 is a Chinese unit of land area (about 666 m²), and it carries 田, the character for cultivated field. The mǔ reading echoes the English moo, tying this acre-like measure to grazing farmland.
亩 — field 田 + ten 十 on top
亩 originally depicted a measured plot of farmland, with 田 (field) as the semantic core. The ancient form showed ridges or boundaries dividing the land into units. It became the standard Chinese unit of land area, equal to about 666 square meters today.