casement

[ keys-muh nt ]
/ ˈkeɪs mənt /

noun

a window sash opening on hinges that are generally attached to the upright side of its frame.
Also called casement window. a window with such a sash or sashes.
a casing or covering.

Origin of casement

1375–1425; late Middle English. See case2, -ment

Related forms

case·ment·ed, adjective

Definition for casement (2 of 2)

Casement

[ keys-muh nt ]
/ ˈkeɪs mənt /

noun

(Sir) Roger (David),1864–1916, Irish patriot: hanged by the British for treason.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for casement (1 of 2)

casement

/ (ˈkeɪsmənt) /

noun

a window frame that is hinged on one side
a window containing frames hinged at the side or at the top or bottom
a poetic word for window

Word Origin for casement

C15: probably from Old Northern French encassement frame, from encasser to frame, encase, from casse framework, crate, case ²

British Dictionary definitions for casement (2 of 2)

Casement

/ (ˈkeɪsmənt) /

noun

Sir Roger (David). 1864–1916, British diplomat and Irish nationalist: hanged by the British for treason in attempting to gain German support for Irish independence

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