LEARNit Dictionary
sash window
noun
/ˌsæʃ ˈwɪndəʊ/
UK
/ˌsæʃ ˈwɪndəʊ/
US
1
a window that consists of two separate parts, one above the other that you open by sliding one of the parts up or down
پنجره کشویی عمودی