The term 'interior of country' can be summed up by the crossword solution 'INLAND, ' which is a six-letter word. INLAND refers to the area within a country that is not on the coast or near a border. It is typically more rural and less populated than coastal areas, and often has different climates and landscapes. INLAND areas are often home to unique cultures and traditions, as well as natural resources that are not found in other parts of the country.