Dictionary.com
Thesaurus.com

English walnut vs. black walnut

[ing-glish wawl-nuht, -nuht, ing-lish] / ˈɪŋ glɪʃ ˈwɔlˌnʌt, -nət, ˈɪŋ lɪʃ /

noun

  1. a walnut tree, Juglans regia.

  2. the large, wrinkled nut of Juglans regia, widely used in cooking.

noun

  1. a tree, Juglans nigra, of North America, having pinnate leaves and dark-brown bark and bearing an edible nut covered by a thick green or brown husk.

  2. the nut of this tree.

  3. the wood of this tree, valued in furniture-making.