The crossword solution for the term ANIMAL'S PASTURE is LEA, which is a three-letter word. LEA is an old English word that refers to an open area of land used for grazing animals such as sheep or cattle. It is also known as a meadow or PASTURE. Historically, leas were common in rural areas and were used to provide food for livestock. Today, they are still used in some parts of the world, but are less common due to the development of modern farming techniques.