The term 'Sum of All Parts' is a phrase used to describe the collective value of an ENTITY. It is derived from the three words that make up the phrase: ONE (3 letters), ENTITY (6 letters), and AGGREGATE (9 letters). The term 'ONE' refers to a single unit, while 'ENTITY' is used to describe a group or organization. Finally, 'AGGREGATE' is used to describe the sum of all parts, or the total value of the ENTITY. Together, these three words form the phrase 'Sum of All Parts, ' which is used to describe the collective value of an ENTITY.