alley, lane
衕 centers on a narrow passageway between buildings: an alley or lane.
衕 combines 行 (going, street) with 同 (same), likely suggesting a shared passageway or alley. The exact historical development is uncertain.
The outer 行 suggests a street or path, and the inner 同 (same) hints at a narrow shared space between buildings. Picture a small alley where neighbors share the same passage.
For トウ, imagine a narrow alley leading to a tall tower: tower -> トウ, and the alley guides you there.
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