The term 'PEPSI BRAND' can be solved by three letter words. The first word is 'COL', which is short for the popular Pepsi Cola brand. The second word is 'MAX', which is the name of a caffeinated cola drink produced by Pepsi. The third word is 'TWO', which is the name of a low-calorie cola drink produced by Pepsi. All three of these drinks are part of the Pepsi brand, which is ONE of the most recognizable and popular soft drink brands in the world.