S1T1A1I1R1C3A1S1E1S1
12 points
STAIRCASES is validvalid
STAIRCASE, [n]
STAIRCASE, a flight of stairs, its supporting framework, and, usually, a handrail or banisters [n]
STAIRCASE, [n]
STAIRCASE, a flight of stairs, its supporting framework, and, usually, a handrail or banisters [n]