The Chinese word for milk is
牛奶

niú nǎi

Chinese Definition

milk
1. 名词. 奶
Components
牛
1. bovine, e.g. cow, bull, ox, buffalo, bison, yak
2. beef
乾gān炒.牛河 - beef chow fun
3. stubborn; pigheaded
4. (colloquial) arrogant
5. (mainland, Mandarin, slang) awesome; powerful
牛屄 - vulgar awesome
牛人 - an awesome person
6. (astronomy) the Ox, a Chinese constellation near Capricorn
7. (physics) Short for 牛頓, tr=niúdùn, newton
8. (Hong Kong Cantonese, computing) Short for 火牛, transformer
^牛 ^僧-孺 - Niu Sengru (Tang politician)
奶
1. breast
奶頭 - nipple -
2. milk; breast milk
飲奶 - to drink milk -
3. to nurse
4. to breastfeed; to suckle
5. (in compounds) infant; infantile; milk (teeth, name, etc.)
奶名 - childhood name -
奶聲奶氣 - childish voice -
6. (regional) mother
7. (regional) grandmother
8. (Hokkien) to behave in a coy, childish or coquettish manner; to coax; to wheedle
9. Simplified form of ?

擠奶
1. v. to milk (of animals)

奶
1. breast
奶頭 - nipple -
2. milk; breast milk
飲奶 - to drink milk -
3. to nurse
4. to breastfeed; to suckle
5. (in compounds) infant; infantile; milk (teeth, name, etc.)
奶名 - childhood name -
奶聲奶氣 - childish voice -
6. (regional) mother
7. (regional) grandmother
8. (Hokkien) to behave in a coy, childish or coquettish manner; to coax; to wheedle
9. Simplified form of ?