(n): a hard-shelled seed consisting of an edible kernel or meat enclosed in a woody or leathery shell
(n): stocky short-legged harness horse
(n): horse used for pulling vehicles
(n): white gull having a black back and wings
(n): mostly white aquatic bird having long pointed wings and short legs
(n): adult male swan
(n): stately heavy-bodied aquatic bird with very long neck and usually white plumage as adult
In business: close of business (day).
From By Hook or By Crook by David Crystal: "Cob – or cobb, as it is sometimes spelled – is a curious word. It has a remarkable range of senses, some dating back to the fifteenth century. At one time or another it has referred to a well-built man, a type of gull, a herring, a male swan, a stout horse, and a spider (think of cobweb). Small haystacks, loaves of bread, certain types of nut, the tops of maize shoots, and even testicles have also been called cobs, as have Spanish dollars (the famous 'pieces of eight'), lumps of building material for walls, and small rounded stones for roadways, more commonly called cobble stones." (p 36)
And: "To give someone a cob can mean to hit them. To have a cob on is to be in a bad mood. To get a cob on is to become sulky." (p 37)
"My eyes, I know, shone divinely as I watched Captain Slogger Dennehy of the Inniskillings win the final chukkar on his darling cob Centaur."
Joyce, Ulysses, 15