IPA: /ˈkɔrnˌkɒb/
KK: /ˈkɔrnˌkɑb/
The central part of an ear of corn that holds the kernels together, usually thick and cylindrical.
After eating the corn, we used the corncob to make a pipe.
The word 'corncob' is formed from 'corn' (from Old English *corn*, meaning grain or seed) and 'cob' (from Middle English *cobbe*, meaning head or lump). The term refers to the central core or head of the ear of corn, which holds the kernels.
Think of 'corn' as the grain and 'cob' as the head that holds it together — that's why a corncob is the central part of the corn ear.
No commonly confused words.