COB

noun

1. A male swan.
2. A corncob.
3. A round, often crusty roll or loaf of bread.

verb

1. To construct using mud blocks or to seal a wall using mud or an artificial equivalent.
2. Of growing corn, to have the heads mature into corncobs.

noun

1. The nut of the common hazel (Corylus avellana); hazelnut.
2. A specific cultivated variety of hazelnut, also known as the Kentish cobnut.
3. A game played by children with nuts.