Documentation is a term with many meanings, the most common of which are: A set of documents provided on paper, or online, or on digital or analog media, such as audio tape or CDs. The process of documenting knowledge, as in scientific articles. The process of providing evidence. The writing of product documentation, such as software documentation. A synonym for the term document. A synonym for the term bibliography.

Multilingual documentation is part of globalization and localization efforts of multinational corporations. Tens of thousands of translators and proofreaders are employed to translate millions of documents every year.