Baby foxes are commonly referred to as kits or cubs. Kits is a term that originates from the Latin word "kit", which means a small container. This term is generally used for newborn foxes that weigh less than one pound, and their eyes are closed for the first few days of their lives. Cubs, on the other hand, is a term that is often used to refer to young foxes that are a bit older, typically between one and six months old. Another synonym for baby foxes is pups, which is commonly used for baby animals that live in dens, such as foxes, wolves, and coyotes.