裡

It is a variant of 裏, and in modern usage the two are often interchangeable, though preferences differ by region.

Phono-semantic compound:

衣 (yī) — “clothing,” representing the concept of an outer shell or layer.

里 (lǐ) — “village, inside, distance,” contributing sound and the idea of an internal space.

Thus, the combined meaning is “the inside of clothing” - “the inner part” more generally.

Fundamentally denotes the inside of clothing and, by extension, the inner part of any space or object.

From this literal sense, it developed broader meanings such as “within,” “inside,” or “one’s internal condition.”

心裡 (심리) — mind, mentality

裡面 (이면) — the inside, interior

裡外 (이외) — inside and outside

村裡 (촌리) — inside the village

家裡 (가리) — at home, within one’s house

裡子 (리자) — inner lining of clothing

道裡 (도리) — distance, route (archaic usage)