
A glen in County Antrim, Ireland.
The definition of a glen is a narrow valley that is hidden away.
An example of a glen are the Glens of Antrim in Northern Ireland.
glen

a narrow, secluded valley
Origin of glen
Middle English from Late Middle Scottish from Gaelic an unverified form glenn (now gleann), mountain valley, akin to Welsh glynglen

noun
A small, secluded valley.
Origin of glen
Middle English from Scottish Gaelic gleann from Old Irish glennglen

Origin
From Scottish Gaelic gleann (“mountain valley”).
Proper noun
- A Scottish habitational surname for someone who lives in a valley.
- A male given name transferred from the surname.