The term 'ULTIMATE END' can be broken down into three separate crossword solutions: DEMISE (6 letters), EST (3 letters), and TELOS (5 letters). DEMISE is a noun meaning the end of life or the death of a person or thing. EST is an abbreviation for the Latin phrase 'esto perpetua, ' which translates to 'let it be perpetual.' TELOS is a Greek word meaning the ultimate purpose or goal of something. Together, these three words form the phrase 'ULTIMATE END, ' which can be interpreted as the final, ultimate end or purpose of something.