en_tn/lev/18/09.md

Do not uncover the nakedness of

Here the idiom "uncover the nakedness" of someone means "have sexual relations" with someone. See how you translated this idiom in Leviticus 18:6. Alternate translation: "Do not have sexual relations with" (See: rc://en/ta/man/jit/figs-idiom)

whether she is the daughter of your father or the daughter of your mother

This means a man cannot have sexual intercourse with his sister if they have the same parents or even if she has a different mother or father.

whether she was born in your home or distant from you

Another possible meaning is, "whether she grew up at your home or far away from you."