noun
walnut
WAWL-nut/ˈwɔːlnʌt/
An edible nut with a wrinkled kernel and hard shell.
The opened walnut reveals its wrinkled kernel.

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.