English: light
Welsh: ffenestr fechan
Subject: Ystadau a Cadw
English definition: A metal or timber frame with glass panes or quarries which may be fixed or openable. 
Welsh definition: Ffrâm bren neu fetel gyda phaenau neu gwarelau gwydr sefydlog neu rai y gellir eu hagor.
Welsh context: Ffynhonnell: Taflen wybodaeth gyhoeddus Cyngor Gwynedd.