The term 'REVERSE Sides' can be broken down into two words: 'REVERSE' and 'Sides'. The word 'REVERSE' means to turn something around or to change the direction of something. The word 'Sides' refers to the two opposite surfaces of an object. Therefore, the term 'REVERSE Sides' can be interpreted as turning something around so that the two opposite surfaces are facing each other. The crossword solution for this term is 'Backs', which refers to the rear surface of an object. Therefore, the term 'REVERSE Sides' can be interpreted as turning something around so that the two rear surfaces are facing each other.