To black out text for other purposes, such as in law, when legally protected sections of text are obscured in a document provided to opposing counsel, typically as part of the discovery process
To reduce to form, as literary matter; to digest and put in shape (matter for publication); to edit
To censor, used by a government when parts of a document are kept secret and the remainder released
The military will redact the document before releasing it, blacking out sections that are classified.
prepare for publication or presentation by correcting, revising, or adapting; "Edit a a book on lexical semantics"; "she edited the letters of the politician so as to omit the most personal passages"
formulate in a particular style or language; "I wouldn't put it that way"; "She cast her request in very polite language"