1. [Brit] (usually only in place names) a valley, especially the deep valley of a stream or rivulet
   "They hiked through Deepdene, admiring the lush vegetation"
    
2. [dialect] A sand dune by the seashore
   "Children played on the denes along the coastline"

Sounds like: deae, Dea

Derived forms: denes

Encyclopedia: Dene, Thomas