1. To make a record of something by writing about it or by filming or photographing it.
2. To provide evidence for a legal statement or claim by supplying supporting information.
3. To support statements in a book, for example, with written references or citations; to annotate information by adding critical or explanatory notes to a text.

1. Descriptive of providing evidence for a legal statement with supporting information: "The judge used the documented confession of the defendant to proceed with the trial."
2. A reference to something that has been written down or recorded: "A video was used to show that there is more documented proof that the boy actually fell down on the icy sidewalk in front of the store and broke his arm."