graffiti -- n. pictures or words painted or drawn on a wall, building, etc.

audience -- n. a group of people who gather together to listen to something (such as a concert) or watch something (such as a movie or play): the people who attend a performance

society -- n. people in general thought of as living together in organized communities with shared laws, traditions, and values

fantasy -- n. something that is produced by the imagination : an idea about doing something that is far removed from normal reality