Mezzanine /(?)/

Mez·za·nine

Mezzanine

n.
  1. Same as Entresol. (Arch.)
  2. A flooring laid over a floor to bring it up to some height or level.
  3. A floor under the stage, from which various contrivances, as traps, are worked. (Theat.)
  4. The lowest balcony in a theater, or the forward part of the first balcony.