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おっぱい (oppai) Japanese meaning: boobs | Kotomora
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母かあ
さん
の
おっぱい
を
触さわ
っ
て
いる
。
The baby is touching its mother's breasts.
I was embarrassed when someone said, 'Your boobs are big.'
Usage patterns 〈 人ひと 〉 におっぱいをあげる to breastfeed someone
She breastfeeds the baby.
おっぱいが 大おお きい to have big breasts
That actress is famous for having big breasts.
おっぱいを 飲の む to drink breast milk
The baby drank breast milk and fell asleep.
Related words 胸 is the standard, neutral word for the chest or breasts used in all registers, while おっぱい is a childish or colloquial term specifically for breasts.
母乳 is the standard, neutral term for breast milk, while おっぱい is baby-talk used mainly with or by very young children.
乳房 is a formal, anatomical term for breasts, whereas おっぱい is an informal, affectionate word used in casual or intimate speech.
おっぱい is an informal, often childish word for breast or milk, while 乳 is neutral and usable in formal or anatomical contexts.
Written forms おっぱい Usage 80%
Standard hiragana spelling; the most common written form.
オッパイ Usage 20%
Katakana spelling, often used for emphasis or in informal contexts like manga.
Etymology A child's word, likely derived from baby-talk reduplication of a sound associated with sucking or fullness. The exact origin is uncertain.