The phrase "in extenso" means to quote or present something in its entirety, without any omissions or edits. Synonyms for "in extenso" include "verbatim," "word for word," "fully," "completely," "entirely," "wholly," and "thoroughly." Each of these words expresses a similar idea to "in extenso" and can be used interchangeably to convey the same meaning. Other synonyms include "at length," "in detail," and "in full," which all imply a thoroughness or completeness in the presentation of a text or statement. Overall, the synonyms for "in extenso" emphasize the importance of conveying a complete and accurate representation of a text or statement.