(informal, possibly dialect) one's own father / (by later extension) the head or master of an establishment such as a teahouse, boathouse, etc.

(archaic) one's own father

father / (by extension, figuratively) a father figure (male initiator or founder of something) / (Christianity) God, the Holy Father

(childish) one's own father: daddy / (by later extension) a husband, master of the house

(colloquial) current boyfriend

everything

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all

(business) a subsidiary of a subsidiary

a public company