first floor definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- the ground floor of a building
- chiefly in Europe and Great Britain, the floor above this
first floor definition by American Heritage Dictionary
- The ground floor of a building.
- Chiefly British The floor immediately above the ground floor.