The term 'Make it Official' can be summarized by two crossword solutions: SIGN and SEALTHEDEAL. SIGN is a 4 letter word that means to affix one's signature to a document, thereby making it legally binding. SEALTHEDEAL is an 11 letter phrase that means to make a contract or agreement official and binding. Both of these terms refer to the act of making something official, such as a contract or agreement, by signing it and sealing it with a signature.