The term 'TREE JAVA' is a combination of two words, 'TREE' and 'JAVA'. UPAS is a four-letter word that is related to this term. UPAS is an acronym for Unifying Programming and Scripting, which is a programming language developed by Oracle Corporation. It is designed to be a unified language for both scripting and programming, allowing developers to write code in either language. UPAS is used to create applications for the JAVA platform.