grandmother

Derived from Middle English 'grandmoder', from 'grand-' meaning 'grand' and 'moder' meaning 'mother'.

NOUN (1)

[/ˈɡrænˌmʌð.ər/^en-US]

おばあさん literal / 祖母 literal / ナナ informal / グランマ informalendearing / おばあちゃん informalendearing / 存在しない概念 untranslatable (The concept of 'grandmother' may refer to a specific culturally nuanced relationship that is not captured by a single term in JAPANESE, lacking emotional ties.)

Synonyms nana informal , grammy informalendearing , grandma informal

自分の父親または母親の母親。日本語では「祖母（そぼ）」や親しい呼び方で「おばあさん」「おばあちゃん」などが equivalent に当たります。

Regular plural

plural
grandmothers

My grandmother bakes the best cookies. — 私の祖母は最高のクッキーを焼きます。
She visited her grandmother every summer. — 彼女は毎年夏に祖母を訪ねました。