The term 'MOST PREFERRED' can be broken down into two crossword solutions: PET (3 letters) and OFCHOICE (8 letters). PET stands for 'preferred emotional type, ' which is a term used in psychology to describe the type of relationship that someone prefers. OFCHOICE is an abbreviation for 'of choice, ' which is a phrase used to indicate that something is the most preferred option. In summary, the term 'MOST PREFERRED' can be defined as the preferred emotional type or the most preferred option.