a small hill of sand formed by the wind, near the sea or in a desert (风吹积成的)沙丘 Topics Geographyb2Oxford Collocations DictionaryDune is used before these nouns:- buggy
- sand
Word Originlate 18th cent.: from French, from Middle Dutch dūne; related to Old English dūn ‘hill’ (related to Dutch duin ‘dune’), perhaps ultimately of Celtic origin and related to Old Irish dún and obsolete Welsh din ‘fort’.