also: ひいばば · ひばば · ひおおば
great-grandmother
Refers to the mother of one's grandparent. The reading そうそぼ is formal, while ひいばば is colloquial and often used by children.
My great-grandmother will be 95 this year.
I look forward to visiting my great-grandma's house.
Variant using the simplified kanji 曽; less common but still used.
Kana spelling for the colloquial reading ひいばば, often used in speech or informal writing.
Contracted colloquial reading; less common than ひいばば.
Alternate colloquial reading; rarely used in modern Japanese.