乳首
also: ちちくび
Meanings
1
Refers to the nipple of a human or animal. Neutral in register, used in everyday and medical contexts.
The baby is sucking on the nipple.
Nipples can become sore during breastfeeding.
Usage patterns
- 乳首が痛いone's nipple hurts
My nipple hurts from breastfeeding the baby.
- 乳首が立つone's nipple becomes erect
My nipples became erect from the cold.
- 乳首を触るto touch someone's nipple
The baby is touching its own nipple.