Spreading is a term used to describe the process of something becoming more widespread or covering a larger area. CATCHING is an 8 letter word that can be used to describe the process of spreading, as it implies that something is quickly being taken up or accepted. OVERRUNNING is an 11 letter word that can also be used to describe the process of spreading, as it implies that something is quickly taking over or dominating an area. GROWING is a 7 letter word that can be used to describe the process of spreading, as it implies that something is increasing in size or scope. ADVANCING is a 9 letter word that can be used to describe the process of spreading, as it implies that something is making progress or moving forward. FLARING is a 7 letter word that can be used to describe the process of spreading, as it implies that something is rapidly increasing or intensifying.