The crossword solution for the term 'secretive site' is AREA, which is a four letter word. An AREA is a geographical region or part of a country, city, or town. It can also refer to a specific place or location, such as a military base or a secret site. Areas are often used to describe a certain type of environment, such as a desert, forest, or mountain range. Areas can also be used to describe a particular group of people, such as a community or a nation.