The crossword solution for the term 'LIMB's Partner' is LIFE, which is a four-letter word. LIFE is a concept that is often used to describe the existence of all living things, including plants, animals, and humans. It is also used to refer to the experience of being alive, such as the joys and struggles of everyday LIFE. LIFE is an essential part of the natural world and is something that is valued and celebrated by many cultures around the world.