cow barn(n = noun.artifact) byre, cowbarn, cowhouse, cowshed - a barn for cows;
is a kind of barn

ant cow, barn, barn dance, barn door, barn grass, barn millet, barn owl, barn spider, barn swallow, cash cow, cow, cow chip, cow cockle, cow dung, cow lily, cow man, cow manure, cow oak, cow parsley, cow parsnip, cow pasture, cow pen, cow pie, cow pony, cow shark, cow tree, dairy cow, horse barn, mad cow disease, milch cow, milk cow, sacred cow, sea cow, springing cow, steller's sea cow, tithe barn