| Noun | 1. | staircase - a way of access (upward and downward) consisting of a set of steps backstairs - a second staircase at the rear of a building building, edifice - a structure that has a roof and walls and stands more or less permanently in one place; "there was a three-story building on the corner"; "it was an imposing edifice" companionway - a stairway or ladder that leads from one deck to another on a ship moving staircase, moving stairway, escalator - a stairway whose steps move continuously on a circulating belt emergency exit, fire escape - a stairway (often on the outside of a building) that permits exit in the case of fire or other emergency flight of stairs, flight of steps, flight - a stairway (set of steps) between one floor or landing and the next ghat - stairway in India leading down to a landing on the water landing - an intermediate platform in a staircase stairhead - platform at the top of a staircase stair, step - support consisting of a place to rest the foot while ascending or descending a stairway; "he paused on the bottom step" way - any artifact consisting of a road or path affording passage from one place to another; "he said he was looking for the way out" ramp - a movable staircase that passengers use to board or leave an aircraft |