The term 'THEATER STAGE ITEM' can be summarized as a four-letter word, 'PROP'. A PROP is an object used on stage in a theatrical production. Props are used to help actors portray their characters and to help the audience understand the story being told. They can range from everyday items such as furniture and clothing to more specialized items such as weapons or musical instruments. Props are often used to create a sense of realism and to help the audience suspend disbelief.