The term 'PREFIX WITH METER AND SCOPE' is a crossword solution that can be completed with the word 'PERI', which is a four-letter prefix. The prefix 'PERI' is derived from the Greek word for 'AROUND' or 'ABOUT', and it is often used to describe something that is located AROUND or near something else. In this case, the prefix 'PERI' is being used to describe something that is related to the words 'METER' and 'SCOPE'. Therefore, the complete crossword solution is 'PERI-METER' and 'PERI-SCOPE'.