Will' The term 'WILL' is a three letter word that can be found in the crossword solutions for the term 'WILL, Spite'. WILL is a noun that is used to refer to a person's determination or desire to do something. It is often used to describe a person's strong determination to achieve a goal or to make a decision. WILL is also used to refer to a person's capacity to choose and act freely. In addition, it can be used to refer to a person's capacity to make decisions without being influenced by external factors.