= Mexico ; south of the border. Ex: Mexico is undergoing an intense epidemiological transition characterised by a decline in the incidence of infectious diseases and a rapid increase in the importance of chronic illnesses and accidents. Ex: What's more, creature comforts of American life are increasingly becoming available south of the border. ---- * Golfo de Méjico, el = Gulf of Mexico, the. * indio de méjico = Mexican Indian. * Nuevo Méjico = New Mexico.