GNU Collaborative International Dictionary of English

Found one definition

      
high-water a. Pertaining to water at its highest achieved level; of or pertaining to high water; as, “the high-water marks on the walls after a flood”.

[PJC]

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Aune, Dane, Dine, Done, Dude, Due, Duke, Dun, Dunce, Dune, Dung, Dunne, Dunt, Dupe, Dure, Duse, Dyne, June, Lune, Rune, Tune