heir, inheritor
財産は相続人たちの間で平等に分けられた。
The estate was divided equally among the heirs.
彼は息子を正式の相続人と認めた。
He recognized his son as his legitimate heir.
彼は一人っ子だったので、唯一の相続人だった。
Since he was an only child, he was the sole heir.