1. staircase - Noun
2. staircase - Verb
A flight of stairs with their supporting framework, casing, balusters, etc.
Source: Webster's dictionaryAccompanied by the gay writer Sir Noël Coward at a gala, she mounted a staircase lined with Guards. Source: Internet
Access from the northern side involves carrying or pushing a bicycle up a staircase, consisting of 55 steps, located on the west side of the bridge at Burton St, Milsons Point. Source: Internet
A double helix staircase wraps around the convert kinetic sculpture of a human genome. Source: Internet
Among its distinctive features are the delicate, flower-ornamented iron balconies on its facade, which were constructed by J.B. and J.M. Cornell and its grand staircase, which extends upward twelve floors. Source: Internet
Also there is a spiral staircase winding upwards between the inner and outer wall and connecting the galleries. Source: Internet
An oak and black steel staircase leads up a half level to the living room, which has glass walls overlooking the kitchen on one end and the atrium on the other. Source: Internet