Synonyms for floor

noun

1. The lower limit of a room

   floorboards, deck, flagstones, tiles, planking, parterre, ground, carpet, rug, linoleum, subfloor, platform.

2. The space in a building between two floors

   story, stage, landing, level, flat, basement, cellar, ground floor, lower story, first floor, mezzanine, upper story, downstairs, upstairs, loft, attic, garret, penthouse.

verb

1. To knock down

   fell, bring down, bowl over; see fell.

2. *To confound

   flabbergast, astound, dumbfound, nonplus; see confuse, surprise 1.