floor

noun:the lower surface of a room, on which one stands
- She dropped her keys on the floor.
noun:a level of a building
- The library is located on the third floor.
noun:the ground or lower surface in any natural environment, such as the ocean floor
- Divers explored the coral reef on the ocean floor.
noun:the right to speak or be heard in a meeting or assembly
- She was given the floor to present her proposal.
verb:to knock someone to the ground
- The boxer floored his opponent with a powerful punch.
verb:to surprise or shock someone completely
- The news of his promotion absolutely floored him.
verb:to provide a room or building with a floor
- They decided to floor the attic with hardwood.