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floor definition


This page has 26 definitions of floor in English and Middle English. Floor is a noun and verb. Examples of how to use floor in a sentence are shown. Also define these 0 related words and terms: .

See also: Floor

English floor definition

A mosaic floor


From Middle English flor, flore, from Old English flōr (floor, pavement, ground, bottom), from Proto-Germanic *flōrō, *flōrô, *flōraz (flat surface, floor, plain), from Proto-Indo-European *pleh₂ros (floor), from Proto-Indo-European *pleh₂- (flat).

Cognate with West Frisian flier (floor), Dutch vloer (floor), German Flur (field, floor, entrance hall), Swedish flor (floor of a cow stall), Irish urlár (floor), Scottish Gaelic làr (floor, ground, earth), Welsh llawr (floor, ground), Latin plānus (level, flat).



floor (plural floors)

  1. The interior bottom or surface of a house or building; the supporting surface of a room.
    The room has a wooden floor.
  2. Ground (surface of the Earth, as opposed to the sky or water or underground).
  3. The lower inside surface of a hollow space.
    Many sunken ships rest on the ocean floor.
    The floor of a cave served the refugees as a home.
    The pit floor showed where a ring of post holes had been.
  4. A structure formed of beams, girders, etc, with proper covering, which divides a building horizontally into storeys/stories.
  5. The supporting surface or platform of a structure such as a bridge.
    Wooden planks of the old bridge's floor were nearly rotten.
  6. A storey/story of a building.
    For years we lived on the third floor.
    • 1963, Margery Allingham, chapter 19, in The China Governess[1]:
      When Timothy and Julia hurried up the staircase to the bedroom floor, where a considerable commotion was taking place, Tim took Barry Leach with him. He had him gripped firmly by the arm, since he felt it was not safe to let him loose, and he had no immediate idea what to do with him.
  7. In a parliament, the part of the house assigned to the members, as opposed to the viewing gallery.
  8. Hence, the right to speak at a given time during a debate or other public event.
    Will the senator from Arizona yield the floor?
    The mayor often gives a lobbyist the floor.
  9. (nautical) That part of the bottom of a vessel on each side of the keelson which is most nearly horizontal.
  10. (mining) A horizontal, flat ore body; the rock underlying a stratified or nearly horizontal deposit.
  11. (mining) The bottom of a pit, pothole or mine[1].
  12. (mathematics) The largest integer less than or equal to a given number.
    The floor of 4.5 is 4.
  13. (gymnastics) An event performed on a floor-like carpeted surface; floor exercise
  14. (gymnastics) A floor-like carpeted surface for performing gymnastic movements.
  15. (finance) A lower limit on the interest rate payable on an otherwise variable-rate loan, used by lenders to defend against falls in interest rates. Opposite of a cap.
  16. A dance floor.
    • 1983, "Maniac", Michael Sembello and Dennis Matkosky:
      She's a maniac, maniac on the floor / And she's dancing like she never danced before
    • 1987, "Walk the Dinosaur", Was (Not Was):
      Open the door, get on the floor / Everybody walk the dinosaur
  17. The trading floor of a stock exchange, pit; the area in which business is conducted at a convention or exhibition.



Derived terms

Related terms



floor (third-person singular simple present floors, present participle flooring, simple past and past participle floored)

  1. (transitive) To cover or furnish with a floor.
    floor a house with pine boards
    • 1963, Margery Allingham, chapter 1, in The China Governess[2]:
      The huge square box, parquet-floored and high-ceilinged, had been arranged to display a suite of bedroom furniture designed and made in the halcyon days of the last quarter of the nineteenth century, [].
  2. To strike down or lay level with the floor; to knock down.
  3. (informal, dated) To hang (a picture on exhibition) near the base of a wall, where it cannot easily be seen.
    Antonym: sky
  4. (driving, transitive, slang) To push (a pedal) down to the floor, especially to accelerate.
    our driver floored the pedal
  5. (informal, transitive) To silence by a conclusive answer or retort.
    floor an opponent
  6. (informal, transitive) To amaze or greatly surprise.
    We were floored by his confession.
    • 2021 June 3, Katherine Eban, “The Lab-Leak Theory: Inside the Fight to Uncover COVID-19’s Origins”, in Vanity Fair[3]:
      Some of the attendees were “absolutely floored,” said an official familiar with the proceedings. That someone in the U.S. government could “make an argument that is so nakedly against transparency, in light of the unfolding catastrophe, was…shocking and disturbing.”
  7. (colloquial, transitive) To finish or make an end of.
    floor a college examination
  8. (mathematics) To set a lower bound.
    floored division


Further reading


  1. ^ 1881, Rossiter W. Raymond, A Glossary of Mining and Metallurgical Terms


Middle English floor definition



  1. Alternative form of flor