wal‧nut /ˈwɔːlnʌt $ ˈwɒːl-/ noun
[Language: Old English; Origin: wealhhnutu, from Wealh 'Welsh person, foreigner' + hnutu 'nut'; because it was brought into Britain from abroad, probably by the Romans]

1. [countable] a nut that you can eat, shaped like a human brain:
coffee and walnut cake

2. [countable] (also walnut tree) a tree that produces this type of nut

3. [uncountable] the wood from a walnut tree, often used to make furniture

[TahlilGaran] Dictionary of Contemporary English ▲