曽祖父(そうそふ) そうそふ noun great-grandfather formalfamily 1. great-grandfather The father of one's grandfather or grandmother. 曽祖父(そうそふ)は漁師(りょうし)だった。 My great-grandfather was a fisherman. 曽祖父(そうそふ)の写真(しゃしん)が一枚(いちまい)だけ残(のこ)っている。 Only one photo of my great-grandfather survives. この家(いえ)は、曽祖父(そうそふ)が明治(めいじ)の終(お)わりに建(た)てたものだ。 This house was built by my great-grandfather at the end of the Meiji era. RegisterLike 祖父(そふ), 曽祖父(そうそふ) belongs to writing and formal speech, and is used for one's own family. In conversation people say ひいおじいさん or ひいおじいちゃん.Related words曽祖母(そうそぼ): great-grandmother祖父(そふ): grandfather曽孫(ひまご): great-grandchildWritingAlso written 曾祖父(そうそふ), with the traditional form of the first kanji. Related Words Related: 曽祖母(そうそぼ) (great-grandmother) Related: 曽孫(ひまご) (great-grandchild) general Added 2026.9.30 2:04 · Revised 2026.9.30 3:08 31000/31248_sousofu