House; home — a kanji used alone or as a suffix (as in 自宅, 宅配) to indicate a residence.
仕事の後、私は自宅に帰った。
After work, I returned home.
宅配便が荷物を届けてくれた。
The courier delivered the package.
帰宅途中にスーパーに寄った。
I stopped by the supermarket on my way home.
One's house or home (often used with the honorific 'o' as お宅 to refer to someone's home/polite 'you').
お宅はどちらですか？
Where is your home?
お宅のご夫妻によろしくお伝えください。
Please give my regards to you and your spouse.
An old usage meaning one's husband or master of the house; used historically, now rare.
古い日記には『宅』が夫を指す例が見られる。
In old diaries, there are examples where '宅' refers to the husband.