"Mezzanine" is a noun that means a low-ceiling story that is between two other stories of a building. It also refers to the lowest balcony in a theater and the rows of seating in this area of a theater.
"Mezzanine" also refers to flooring that has been laid onto a floor to bring it up to a certain height. And, mainly a British definition, "mezzanine" is the floor under a theater stage where trapdoors are located.
The term dates back to the early 1700s. It originated from the Italian terms "mezzanino" and "mezzano," which mean middle or intermediate.
The plural form is "mezzanines." Other common terms include "mezzanine floor" or "mezzanine story."
Synonyms for "mezzanine" are low, a theater box, balcony, terrace or floor. Antonyms include high or ceiling.