The term 'make official' can be summarized by three crossword solutions: SIGN, ENACT, and ORDAIN. Signing is the act of affixing one's signature to a document, which is often done to make a document or agreement official. Enacting is the process of passing a law or other measure, which is also done to make something official. Ordaining is the act of conferring authority or power, which is also used to make something official.