cowbarn n a barn for cows Usage(s) He rounded up Congressman Nixon, drove to Maryland, found Chambers in the cowbarn at his farm, finishing the evening milking. For the last 39 years, professors who wished milk were obliged to go to the cowbarn with a can and cart it home as best they could. In cowbarn language he proposed a Farmers Holiday Association to execute the strike. Synonym(s) cowshed cow barn cowhouse byre