noun
Refers to milk in general, including breast milk and animal milk. Common in compounds like 牛乳 (cow's milk).
赤ちゃんに乳をあげる時間だ。
It's time to give the baby milk.
このチーズは新鮮な乳から作られている。
This cheese is made from fresh milk.
noun
Refers to the breast, especially in the context of nursing or anatomy. Can be used for both humans and animals.
母親は赤ん坊に乳を含ませた。
The mother gave the baby her breast.
牛の乳からミルクを搾る。
Milk is drawn from the cow's udder.
noun
Only with reading ち
Rare reading ち used for a loop or ring, often in traditional or technical contexts.
この飾り結びは乳の形をしている。
This decorative knot is shaped like a loop.
noun
decorative bump on a hanging bell
Only with reading ち
Rare reading ち used specifically for the raised decorative bumps on a bonshō (梵鐘, large hanging bell).
See also: 梵鐘
梵鐘の乳は、音響を整える役割もあると言われる。
The bumps on a temple bell are said to also help adjust the sound.