Dictionary

staircase

noun stair·case \-ˌkās\

: a set of stairs and its supporting structures

Full Definition of STAIRCASE

1
:  the structure containing a stairway
2
:  a flight of stairs with the supporting framework, casing, and balusters

First Known Use of STAIRCASE

1624
May 25, 2015
callithump Hear it
a noisy boisterous band or parade
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