staircase

US/ˈstɛɹˌkeɪs/

nounA2+Common in everyday speech and writing · #6,403 of 15,258leans written

Other forms: staircases

A staircase is the full flight of steps connecting floors, rail included. A spiral staircase, climb the staircase, a grand staircase.

It means the whole structure rather than the steps alone, which is the difference from stairs. Building rules fix the rise and going of each step tightly, because a staircase with uneven steps is one of the commonest causes of falls at home.

Definitions of staircase

1nounstaircaseThe full flight of steps connecting floors.A2+
“She ran down the staircase to open the front door.”

staircase is a structure.

Also accepted in games: stairs, stairway

Where it comes from

From stair + case.

Etymology from Wiktionary, CC BY-SA

Practised in Around the House

Practise this word

staircase in the wild

Types of stairs include staircases (also called stairways) and escalators.
Stairs
A stairwell is a vertical shaft or opening that contains a staircase.
Stairs
The Survivors' Staircase is a granite and concrete staircase that was the last visible remaining original structure above ground level at the World Trade Center site.
Survivors' Staircase
The staircase was moved from its original location in 2008, and in 2010 it became part of the National September 11 Memorial & Museum.
Survivors' Staircase
An escalator is a moving staircase which carries people between floors of a building or structure.
Escalator

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From Wikipedia, CC BY-SA 4.0. These sentences were written by other people about their own subjects; they are here to show the word at work, not as anybody’s opinion.

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