sand dune sand drown • sand eel · · · Info · Definitions · Synonyms · Characters · · sand dune · · Text Common · · Latin · · Scripts 9 · · Length Definitions · · · (noun) a ridge of sand created by the wind; found in deserts or near lakes and oceans. Synonyms: dune. · · Noun Definition 1 Synonyms · · · backbone · · Synonym 1 grit · · Synonym 2 guts · · Synonym 3 moxie · · Synonym 4 sand · · Synonym 5 gumption · · Synonym 6 sandpaper · · Synonym 7 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 n latin small letter n U+006E s latin small letter s U+0073 u latin small letter u U+0075