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person
「人」 has other readings with different meanings.
大人になったら何をしたい?
What do you want to do when you grow up?
何人いるか数えてみよう。
Let's count how many people there are.
あの二人はいつも一緒にいるから仲がいいんだろうね。
Those two are always together, so they must get along well.