祖母|そぼsobo[1]atamadaka (head-high)

1. noungrandmother
   私は祖母そぼが大好だいすきです。↗

   I love my grandmother very much.

• SynonymおばあさんNeutralNeutral term for addressing your grandmother, also used for elderly women in general, as in 「隣のおばあさん」; 「祖母」 is strictly about the family relationship.
• SynonymばあさんCasualCasual word for a grandma or old woman; toward strangers it can sound disrespectful. 「祖母」 is a more objective term for the relationship.
• RelatedおばあちゃんCasualColloquial and affectionate way to address your grandma, also used for elderly women in general; 「祖母」 is the term for stating the family relationship.
• RelatedばあちゃんCasualVery casual way to say grandma or an old lady, rougher than 「お婆ちゃん」; 「祖母」 focuses on the kinship relation.
• RelatedおばあさまFormalFormal honorific for a grandmother or elderly woman, as in 「おばあ様によろしく」; 「祖母」 itself carries no honorific nuance.
• Antonym祖父そふNeutralThe grandfather: the father of one's father or mother, the male opposite of 「祖母」; neither term distinguishes paternal from maternal line.

When talking about your grandmother to others, use 「祖母」; address her as 「お婆ちゃん」 or 「お祖母さん」, formally as 「おばあ様」; for an old lady, casual 「婆さん」; grandfather is 「祖父」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. ある人物じんぶつの親おやの親おやである人ひとのうち、女性じょせいである人物じんぶつ。
2. 二親等にしんとうの尊属そんぞくの女性じょせい。