the inside lower horizontal surface (as of a room, hallway, tent, or other structure)
surprise greatly; knock someone's socks off
a lower limit
knock down with force
a large room in a exchange where the trading is done
a structure consisting of a room or set of rooms at a single position along a vertical scale
the bottom surface of any lake or other body of water
the ground on which people and animals move about
the legislative hall where members debate and vote and conduct other business
the lower inside surface of any hollow structure
the occupants of a floor
the parliamentary right to address an assembly
an upper limit on what is allowed
maximum altitude at which a plane can fly (under specified conditions)
(meteorology) altitude of the lowest layer of clouds
the overhead upper surface of a covered space