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each house; every house
「戸々」 has another reading with different meanings.
戸々に案内を配った。
I distributed notices to each house.
戸々から煙が立ち上っていた。
Smoke was rising from each house.
この地域の戸々を訪ねて歩くと昔の暮らしが見えてくる。
Walking and visiting each house in this area reveals old ways of living.