from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A valley in a mountain area, especially one with a stream in the bottom
from the GNU version of the Collaborative International Dictionary of English
- n. A glen. See glen. [Obs. singly, but occurring often in locative names in Ireland, as Glen does in Scotland.]
from The Century Dictionary and Cyclopedia
- n. An element in some Celtic place-names, meaning ‘glen’: as, Glyn-crwg, Glyn-taf, in Wales; Glynn in Antrim, Ireland.
Welsh; compare glen. (Wiktionary)