Milk is the white liquid that female mammals produce for feeding their babies. Nursing human mothers feed their infants milk, and so do mother goats, cows, dogs, and cats.
If you love to drink milk, you're probably a fan of the kind that comes from cows on farms and is sold in grocery stores. However, if you're allergic to this kind of milk, you might drink one of the beverages also known as milk that are made from soaking beans, nuts, rice, or even coconut in water until it becomes rich, white, and milky. To milk is to extract or draw milk from a plant or animal.