父

Commonly used until the end of the Meiji period

father; Dad

father-in-law; foster father; stepfather

stubborn (obstinate) father; pig-headed old man

Familiar

grandpa; gramps

single-father household; motherless family

Colloquial

bad pun; corny joke; worn-out joke; dad joke

Word usually written using kana alone

old people

祖父祖母 only

grandparents

patricide

founding father (of a country)

great-grandfather

From Daddy-Long-Legs, a 1912 novel by Jean Webster

anonymous scholarship system for orphans whose parents have been killed in traffic accidents

Colloquial

becoming (like) an old man (in one's manner); turning into an old geezer

Colloquial

street violence against middle-aged men

daddy's girl; daddy's boy

daddy's girl; daddy's boy

hereditary; patrimonial; handed down from generation to generation

patriarchy; system of patriarchy

half-sibling (with a different father)

half-sister (different father); half-sisters

great-grandparents

Proverb

things to fear: earthquakes, thunder, fires and, most of all, fathers

Work of art, literature, music, etc. name

Like Father, Like Son (2013 film)

rights of the head of a family

patriarchal society