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seed (of a fruit); pit; pip; stone
tongue (projecting strip on a board that fits into a groove on another board)
clitoris
「実」 has other readings with different meanings.
庭に植えた桃の木から実がたくさん取れた。
I planted and grew a peach pit.
果物の実を丁寧に取り出した。
I took out the fruit seed.
この果物の実は少し苦いが薬になる。
The seed of this fruit is a bit bitter but medicinal.