Get an English Tutor
English word staircase comes from English stair, English case
stair (English)
A series of steps, a staircase.. A single step in a staircase.
case (English)
(US) A unit of liquid measure used to measure sales in the beverage industry, equivalent to 192 fluid ounces.. (mining) A small fissure which admits water into the workings.. (poker slang) Four of a kind.. (printing, historical) A shallow tray divided into compartments or "boxes" for holding type, traditionally arranged in sets of two, the "upper case" (containing capitals, small capitals, [...]
staircase (English)
(transitive) To modify (a signal, a graph, etc.) so as to reduce a smooth curve to a series of discrete steps. A connected set of flights of stairs; a stairwell.. A flight of stairs; a stairway.. A set of locks (enclosed sections of waterway) mounted one above the next.