The term 'focuses (on)' can be solved in three different ways in a crossword puzzle. The first solution is 'fixates' which is a 7 letter word meaning to concentrate on one thing or person. The second solution is 'zerosin' which is also a 7 letter word meaning to concentrate on something with great intensity. The third solution is 'zeroesin' which is an 8 letter word meaning to direct attention to a particular point or area. All three solutions refer to the act of concentrating on something or someone with great intensity.