CLWYD Meaning of CLWYD in English Clw ‧ yd /ˈkluːɪd/ BrE AmE a former ↑ county in North Wales. In 1994 Clwyd was divided between the counties of Flintshire and Denbighshire. Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012