The term 'ANY LIVING THING' can be summarized as an ORGANISM, which is an 8 letter word. An ORGANISM is a living being that has a cellular structure and can reproduce. It is composed of one or more cells and has the ability to grow, respond to stimuli, and maintain homeostasis. Organisms can range from single-celled bacteria to complex multicellular organisms such as humans. All living things are considered organisms, including plants, animals, fungi, and protists.