different between duned vs tuned

English

dune +? -ed

duned (not comparable)

(geology) Featuring or formed into dunes.
- 1912, William Mumford Gregory, Geological report on Arenac County, Issue 11, page 76,
  The banks are duned and are nearly 40 feet above the lake.
- 1975, Joel S. Watkins, Michael L. Bottino, Marie Morisawa, Our Geological Environment, page 226,
  Duned coasts appear where sand accumulates on a beach faster than the waves can move the material alongshore.

tuned

tuned

Adjusted in pitch or resonance.
The tuned wind chimes sounded almost like they were playing a melody.

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