The term 'ULTIMATUM END' can be broken down into two crossword solutions: ELSE (4 letters) and ORELSE (6 letters). ELSE is a conjunction that is used to introduce an alternative, while ORELSE is a phrase that means the same thing. Both terms are used to indicate that if one option is not chosen, then another must be chosen instead. They are often used in ultimatums, where one party gives another an ultimatum with two options, and if one option is not chosen, then the other must be chosen instead.