Enclosures for sows are commonly referred to as PIGPENS, which is a 7-letter word. PIGPENS are structures that are used to house pigs, typically sows, and provide them with a safe and comfortable environment. They are usually made of wood or metal and can be either open or enclosed. PIGPENS are designed to protect the animals from predators and the elements, while also providing them with enough space to move around and access food and water.