Dictionary.com
Thesaurus.com

walnut

American  
[wawl-nuht, -nuht] / ˈwɔlˌnʌt, -nət /

noun

  1. the edible nut of trees of the genus Juglans, of the North Temperate Zone.

  2. the tree itself.

  3. the wood of such a tree.

  4. Northeastern U.S. the hickory nut.

  5. any of various fruits or trees resembling the walnut.

  6. a somewhat reddish shade of brown, as that of the heartwood of the black walnut tree.


walnut British  
/ ˈwɔːlˌnʌt /

noun

  1. any juglandaceous deciduous tree of the genus Juglans, of America, SE Europe, and Asia, esp J. regia, which is native to W Asia but introduced elsewhere. They have aromatic leaves and flowers in catkins and are grown for their edible nuts and for their wood

  2. the nut of any of these trees, having a wrinkled two-lobed seed and a hard wrinkled shell

  3. the wood of any of these trees, used in making furniture, panelling, etc

  4. a light yellowish-brown colour

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. made from the wood of a walnut tree

    a walnut table

  2. of the colour walnut

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of walnut

before 1050; Middle English; Old English wealh-hnutu literally, foreign nut; Welsh, nut

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“We have to make our own from anything with tannin — oak galls, acorns or black walnuts — and let it sit to dye it black.”

From Los Angeles Times

And speaking of nutty, a handful of toasted pine nuts, hazelnuts, pistachios, walnuts, almonds, or even chopped chestnuts never goes amiss.

From Salon

Ahead of the holiday season, Costco launched about 45 new Kirkland products, while also cutting prices on items such as chicken pot pies, slabs of bacon, packs of whipped cream and walnuts.

From The Wall Street Journal

Pesky male walnut trees were growing unhindered in their absence.

From Los Angeles Times

If you round things out with a French baguette, grapes, dried apricots, olives, and a bowl of spicy walnuts or pecans, you’ve got an easy spread for 10–15 people.

From Salon