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
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First Known Use of STAIRCASE

1624
STAIRCASE Defined for Kids

staircase

noun stair·case \ˈster-ˌkās\

Definition of STAIRCASE for Kids

:  a flight of steps with their supporting structure and railings
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