mezzanine
US /ˈmet.sə.niːn/
UK /ˈmet.sə.niːn/

1.
asma kat, ara kat
a low story between two main stories of a building, typically an intermediate floor between the ground floor and the first floor.
:
•
The library has a beautiful mezzanine level with extra seating.
Kütüphanede ek oturma alanı olan güzel bir asma kat bulunmaktadır.
•
We watched the concert from the mezzanine seats.
Konseri asma kat koltuklarından izledik.