weald /ˈwi(ə)ld/
  曠野,森林地
  Weald n.  A wood or forest; a wooded land or region; also, an open country; -- often used in place names.
  Fled all night long by glimmering waste and weald,
  And heard the spirits of the waste and weald
  Moan as she fled.   --Tennyson.
  Weald clay Geol., the uppermost member of the Wealden strata.  See Wealden.
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  weald
       n : an area of open or forested country