dene (dēn) n.
Chiefly British A sandy tract or dune by the seashore.
[Possibly East Frisian düne, a sand dune; akin to dune.]
De·ne also Dé·né (dā'nē, dā-nā') n.
(used with a pl. verb) The Athabaskan-speaking peoples of northwest Canada and inland Alaska considered as a group.