Freq. Frequency Top 100,000 Kanji 戸 door, counter for houses, door radical (no. 63) Related words 部屋へや 部屋 is a general term for a room, while 住戸 specifically refers to a self-contained residential unit within a multi-unit building.
住じゅう 宅たく 住宅 is a broader term for a dwelling or house, not necessarily implying a unit within a larger complex.
Etymology Compound of 住 (dwelling) and 戸 (door/household), literally 'dwelling household'. The exact historical derivation is uncertain, but the term is used in modern Japanese for individual apartment units.
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