Definition: The word "gwen stefani" is an Anglo-Welsh surname that means "lady of the Welsh." The term refers to a Welsh noblewoman or lady who was either a member of the House of Gwynedd, the ruling family in Wales, or belonged to another noble house.<0x0A><0x0A>The word has gained popularity in Wales and is often used as a form of address. It has also been used in modern literature and film to refer to the Welsh nobility. The term is sometimes abbreviated as "Gwen St."