主
1
only applies to
主, 主人
head (of a household);proprietor (of a store);proprietress;landlord;landlady;master (of a servant)
この家のあるじは私だ。
It is I who am head of this family.
2
entertaining someone as one's guest
See also:
饗設け (あるじもうけ)
Other forms
主人 【あるじ】 · 饗 【あるじ】 (rarely used kanji form)