north forty noun3 •A 40-acre section of land, located in the northernmost part of a farm or ranch.I headed out to the barn for a ten-minute milking job, and the cow took off and ran to the far end of the north forty. — 2005 •Any remote place.[P]arts of him, uh, are as far away as the north forty. Muscle has been drawn out. . . . His arms—can you imagine?—feel longer. — 1998 •Farms, ranches, or agricultural land collectively.In Dallas and Houston, the dominant architectural forms are glass office towers and air-conditioned shopping malls that owe more to the Bauhaus than to the North Forty. — 1984 formsnorth forties