the central cylindrical woody part of the maize ear to which the grains are attached

a round loaf of bread

a round granary cob

a hazelnut or filbert

cobnut stuffing

a powerfully built, short-legged horse

he's got a nice young bay cob if you want to hack

a male swan

ganders and cobs have permanent pair bonds

a roundish lump of coal

a mixture of compressed clay and straw used, especially in former times, for building walls

cob and thatch cottages