Pronunciation: [djˈuːn] (IPA) 
The spelling of the word "dune" can be traced back to its French origin, "dune." In IPA phonetic transcription, it is spelled as /djuːn/. The first sound, /d/, is followed by the diphthong /juː/ (pronounced like the word "you"), which creates the sound of the letter "u." The final sound, /n/, represents the letter "n." A dune is a hill of sand formed by wind or water, typically found on a beach or in a desert environment.
A dune is a natural landform characterized by a hill or ridge of wind-blown sand. It typically occurs in arid or coastal regions where loose, dry sand is plentiful. Dunes can vary in size and shape, but are generally formed by the interaction between wind, sand, and the landscape itself.
The process of dune formation begins when loose sand particles are transported by wind from a source, such as a beach, riverbed, or desert. As the wind blows, it carries the sand particles along, eventually depositing them in areas with lower wind speeds or where obstacles hinder further transport. Over time, as sand accumulates, it begins to form a mound or ridge that becomes a dune.
Dunes come in various forms, distinguished by their shape and structure. Some common types include crescent or barchan dunes, which have a characteristic crescent shape; linear dunes, which stretch in long lines parallel to the wind direction; and star dunes, which have multiple ridges radiating from a central point.
Dunes play important ecological roles. They provide habitats for specialized plants and animals that are adapted to survive in arid conditions. Moreover, they act as a natural barrier against strong winds, reducing erosion and protecting inland areas. Dunes also have aesthetic and recreational value, attracting visitors for activities such as sandboarding, photography, and contemplative walks. Given their distinctive features and vital environmental functions, dunes hold significant scientific, economic, and cultural importance.
A low hill of moving sand on the coast; a rude circular building with conical roof.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "dune" comes from the Middle Dutch word "dūne" which means "hill" or "mound". It was later borrowed into Middle English as "dun(e)". The ultimate origin of the word is uncertain, but it may have a Proto-Germanic root related to words meaning "to swell" or "to be thick". The word "dune" specifically refers to a hill or ridge of sand formed by wind or water in a desert or coastal area.
