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A part

井

Shown as a part of 1 word so far, read one way.

い 1 word

井戸いどwater well
井戸 · here “well”

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Origins quoted from Wiktionary (CC BY-SA 4.0) via Kaikki.org; meanings & kanji from JMdict, KANJIDIC2 & KRADFILE (EDRDG, CC BY-SA 4.0) — how we check it