documentationPronunciation: /ˌdɒkjʊmɛnˈteɪʃ(ə)n/Translate documentation | into German | into Italian | into Spanish Definition of documentation noun [mass noun] 1material that provides official information or evidence or that serves as a record:you will have to complete the relevant documentation the written specification and instructions accompanying a product, especially a computer program or hardware: user documentation 2the process of classifying and annotating texts, photographs, etc.:she arranged the collection and documentation of photographsdocumentation in other Oxford dictionaries Definition of documentation in the US English dictionary