English: double-hung
Welsh: ffenestr grog ddwbl
Subject: Ystadau a Cadw
English definition: A sash window in which both sashes or sash window - lights are capable of moving up, or down, and are counterbalanced by weights concealed within a sash box.
Welsh definition: Ffenestr godi ble y mae’r ddwy ffrâm neu ffenestr fechan yn medru llithro i fyny ac i lawr, gyda pwysau ffenestr sy’n guddiedig mewn blwch ffrâm yn eu gwrthbwyso.
Welsh context: Ffynhonnell: Taflen wybodaeth gyhoeddus Cyngor Gwynedd.