noun

walnut

WAWL-nut/ˈwɔːlnʌt/

An edible nut with a wrinkled kernel and hard shell.

The opened walnut reveals its wrinkled kernel.

A close-up walnut still life showing one intact hard shell, one cracked-open half holding its wrinkled kernel, and one exposed kernel beside it.
Etymology

The old name meant the walnut tree's nut, later explained as a Gaulish or foreign nut.

More examples

  • The cake contains chopped walnuts.
  • A walnut rolls across the cutting board.

Forms

walnut · walnuts

Similar words

nut
A broader category of edible hard-shelled fruits or seeds.
kernel
The edible inner part, excluding the shell.