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See more synonyms for dormer on Thesaurus.com
  1. Also called dormer window. a vertical window in a projection built out from a sloping roof.
  2. the entire projecting structure.
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Origin of dormer

1585–95; < Middle French dormoir dormitory
Related formsdor·mered, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for dormer

apartment, studio, attic, storage, garret, dormer, bay, aperture, bow, fenestella, oriel, jalousie, casement, fenestration, fanlight, fenestra, lunette, skylight, porthole, lancet

Examples from the Web for dormer

Contemporary Examples of dormer

Historical Examples of dormer

British Dictionary definitions for dormer


  1. a construction with a gable roof and a window at its outer end that projects from a sloping roofAlso called: dormer window
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Word Origin for dormer

C16: from Old French dormoir, from Latin dormītōrium dormitory
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 dormer


1590s, originally "window of a sleeping room," from Middle French dormeor "sleeping room," from dormir "to sleep" (see dormant).

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Online Etymology Dictionary, © 2010 Douglas Harper