Akademik

upper
1. noun /ˈʌpə,ˈʌpɚ/
a) That which is higher, contrasted with the lower.

As the restless sleeper here, Ill take the lower berth. You take the upper.

b) The piece of leather, etc., that forms the top part of a shoe above the sole.
2. adjective /ˈʌpə,ˈʌpɚ/
a) At a higher level, rank or position.
b) Situated on higher ground, further inland, or more northerly.
See Also: on ones uppers

Wikipedia foundation.