doon / dune [du:n]
doon – n., v. & adv. – n. – a large tree of Doona zeylanica of the family Dipterocarpaceae of Ceylon that yields a colourless varnish resin and wood that is very durable; adv. – Scotland variant of down; v. – Scotand variant of doing
dune – n. – a mound of ridge of loose sand, etc., formed by the wind, especially beside the sea or in a desert