The term 'Reasons for Doing Something' can be summarized as the motivations behind a particular action. Reasons for doing something can range from personal gain to altruism, and can be both positive and negative. The four-letter word PROS is an abbreviation for 'Pros and Cons, ' which are two sides of an argument or decision. Pros are the positive aspects of a situation, while cons are the negative aspects. Therefore, PROS can be used to describe the reasons for doing something that are beneficial or advantageous.