floor

Concise Oxford English Dictionary © 2008 Oxford University Press:
floor/flɔː(r)/

▶noun

• 1 the lower surface of a room, on which one may walk.

  ■ the bottom of the sea, a cave, etc.: the ocean floor.

• 2 a storey of a building.

• 3 (the floor) the part of a legislative assembly in which members sit and from which they speak.

  ■ the right to speak in an assembly.

  ■ (in the Stock Exchange) the large central hall where trading takes place.

• 4 a minimum level of prices or wages.

▶verb

• 1 provide with a floor.

• 2 informal knock or punch to the ground.

  ■ baffle or confound completely.

– derivatives
flooring noun.

– origin OE flōr, of Gmc origin.