The term 'STATE OF CONSTANT CHANGE' can be summarized by the word 'FLUX', which is a four-letter word. FLUX is a term used to describe a state of continuous change or movement, often in reference to a physical or chemical process. It is also used to describe a situation that is constantly changing or evolving. In philosophy, FLUX is used to describe the idea that nothing is permanent and that all things are in a constant state of change.