redactPronunciation: /rɪˈdakt/Definition of redact verb [with object] edit (text) for publication: a confidential memo which has been redacted from 25 pages to just one paragraph censor or obscure (part of a text) for legal or security purposes. Derivatives redactor noun Origin: mid 19th century: back-formation from redactionredact in other Oxford dictionaries Definition of redact in the US English dictionary