dune

dune /ˈduːn/ Brit /ˈdjuːn/ noun
plural dunes
dune
/ˈduːn/ Brit /ˈdjuːn/
noun
plural dunes
Britannica Dictionary definition of DUNE
[count]
: a hill of sand near an ocean or in a desert that is formed by the wind
— called also sand dune
— see color picture on this page