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dune

[ doon, dyoon ]
/ dun, dyun /
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noun
a sand hill or sand ridge formed by the wind, usually in desert regions or near lakes and oceans.
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Origin of dune

1780–90; <French, Old French <Middle Dutch dūna; cognate with down3
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use dune in a sentence

British Dictionary definitions for dune

dune
/ (djuːn) /

noun
a mound or ridge of drifted sand, occurring on the sea coast and in deserts

Word Origin for dune

C18: via Old French from Middle Dutch dūne; see down ³
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for dune

dune
[ dōōn ]

A hill or ridge of wind-blown sand. Dunes are capable of moving by the motion of their individual grains but usually keep the same shape. See more at barchan dune draa longitudinal dune seif dune transverse dune.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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