The term 'BIG BEGINNING' can be summarized by the word 'MEGA', which is a four-letter word. MEGA is an abbreviation for 'megahertz', which is a unit of frequency equal to one million hertz. It is commonly used to measure the speed of computer processors, as well as other electronic devices. In addition, MEGA is also used to describe something that is very large or powerful. Therefore, the term 'BIG BEGINNING' can be interpreted as something that is starting off with great power and potential.