stair Meaning, Definition & Usage

  1. noun support consisting of a place to rest the foot while ascending or descending a stairway
    step.
    • he paused on the bottom step

WordNet

Stair noun
Etymology
OE. steir, steyer, AS. stger, from igan to ascend, rise. See Sty to ascend.
Definitions
  1. One step of a series for ascending or descending to a different level; -- commonly applied to those within a building.
  2. A series of steps, as for passing from one story of a house to another; -- commonly used in the plural; but originally used in the singular only. "I a winding stair found." Chaucer's Dream.

Webster 1913