Common Terms. Ecosystem An ecosystem is any geographic area that includes all of the organisms and nonliving parts of their physical environment. An ecosystem can be a natural wilderness area, a suburban lake or forest, or a heavily used area such as a city.
Definition of documentation for English Language Learners. : 1  the documents, records, etc., that are used to prove something or make something official. : 2  written instructions for using a computer or computer program.
Usually, archives. documents or records relating to the activities, business dealings, etc., of a person, family, corporation, association, community, or nation. 2. archives, a place where public records or other historical documents are kept. 3. any extensive record or collection of data: The encyclopedia is an archive of world history.