Mezzazine
Erdgeschoß, i.e. Ground floor
The M in the Greek alphabet is "upper case" Mu.
Moisture
The acceleration of an elevator at rest is 0 m/s2. The inventor of the modern elevator was Elisha Otis.
It stands for "Motorsports" Audi has the S Mercedes has the AMG BMW has the M
mezzanine
The letter M often stands for Mary, although I suppose it could stand for other things as well.
Helium elevator little people
The letter "M" stands for 1,000 in Roman numerals.
The letter 'M' stands for the Blessed Virgin Mary.
Sous-sol (French For Basement)
sótano (which means basement).