Stadium noise is often composed of two distinct sounds: ROAR and RAH. ROAR is a four-letter word that is used to describe the loud, deep sound made by a large crowd of people, usually in an excited state. RAH is a three-letter word that is used to describe the enthusiastic cheering of a crowd, usually in support of a team or individual. Both ROAR and RAH are commonly heard at sporting events, concerts, and other large gatherings.