IPA: /ˈstɛrweɪ/
KK: /ˈstɛrˌweɪ/
A structure consisting of a series of steps that allows people to move from one level to another in a building.
She walked up the stairway to reach the second floor.
Stairway → The word is formed from "stair" (from Old English *stæger*, meaning a step or series of steps) and "way" (from Old English *weg*, meaning a path or road). A stairway is thus a path made up of steps.
Think of a series of 'steps' ('stair') leading along a 'path' ('way') — that's what a stairway is.