also: ばぁちゃん
noun
Familiar, affectionate term for one's own grandmother. Used within the family or when speaking to children about their grandmother.
See also: おばあちゃん
ばあちゃんが作ってくれたおにぎりが一番好き。
I love the rice balls my granny makes the most.
夏休みはいつも田舎のばあちゃんの家に行くんだ。
During summer vacation, I always go to my grandma's house in the countryside.
noun
Familiar, sometimes slightly informal way to refer to an elderly woman who is not necessarily a relative. Can be friendly or mildly impolite depending on context; safer with おばあちゃん in polite situations.
See also: おばあちゃん
近所のばあちゃんがいつも飴をくれる。
The old lady in the neighborhood always gives me candy.
That old woman takes a walk in the park every morning.
A contracted, familiar form of おばあちゃん, itself derived from お祖母ちゃん or directly from ばあ (baby-talk for grandmother) + ちゃん (affectionate suffix).