dormer dormant • dormered · · · Info · Definitions · Synonyms · Characters · · dormer · · Text Latin · · Script 6 · · Length Definitions · · · (noun) a gabled extension built out from a sloping roof to accommodate a vertical window. Synonyms: dormer window. · · Noun Definition 1 Synonyms · · · dormer window · · Synonym 1 Characters · · d latin small letter d U+0064 e latin small letter e U+0065 m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072