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.
National Archive of Scotland website: A document is any piece of written information in any form, produced or received by an organisation or person. It can include databases, website, email messages, word and excel files, letters, and memos.