The term 'STILL BEING DEBUGGED' can be summarized by the crossword solution BETA, which is a four-letter word. BETA is a term used in software development to refer to the pre-release version of a program or application that is still undergoing testing and debugging before its official release. This term is often used to indicate that the program is not yet ready for general use, as it may contain bugs or other issues that need to be addressed.