stairwell

or stair well

[ stair-wel ]
/ ˈstɛərˌwɛl /

noun

the vertical shaft or opening containing a stairway.

Origin of stairwell

First recorded in 1915–20; stair + well2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for stairwell

British Dictionary definitions for stairwell

stairwell

/ (ˈstɛəˌwɛl) /

noun

a vertical shaft or opening that contains a staircase
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for stairwell

stairwell


n.

by 1862, from stair + well (n.).

Online Etymology Dictionary, © 2010 Douglas Harper