GNU Collaborative International Dictionary of English

last match results

Found one definition

1.       
   Dune , n. [The same word as down: cf. D. duin. See Down a bank of sand.] A low hill of drifting sand usually formed on the coats, but often carried far inland by the prevailing winds. [Written also dun.]
   1913 Webster
   Three great rivers, the Rhine, the Meuse, and the Scheldt, had deposited their slime for ages among the dunes or sand banks heaved up by the ocean around their mouths.
   Motley.
   
   1913 Webster