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.
The definition of an archive is a grouping of information, documents, and/or objects. An example of an archive is a collection of old magazines. An archive is defined as a place to keep important information, documents, or objects. An example of an archive is a room in a library where old manuscripts are kept. To archive is defined as to take a collection of things and file them in a specific place.