The term 'REALLY EXCITE' can be broken down into four crossword solutions: ELATE (5 letters), THRILL (6 letters), SEND (4 letters), and FIREUP (6 letters). ELATE means to make very happy or delighted, while THRILL is an intense feeling of excitement or pleasure. SEND is to cause or order to be taken, directed, or transmitted to another place, and FIREUP is to arouse or stir up. Together, these words can be used to describe the feeling of being really excited.