The term COMMON TITLE WORD is a three letter word. It is often used to refer to a person who holds a high-ranking position in an organization, such as a CEO or president. This title is also commonly used in the military, where it is used to refer to a commanding officer. In some cases, it can also be used to refer to a leader of a country or a religious figure. The most common title word is 'SIR' or 'LORD'.