I mentioned in my last post that I would talk about aggregate limits. According to the Webster College Dictionary, aggregate means 1) collect into a sum, mass, or body 2) amount to (a number) 3) gross ...What does aggregate mean? There is a wide variety of lending institutions that offer home mortgage loans, including savings and loan associations, commercial banks, mutual savings banks, and mortgage companies. The lesson therefore is never limit yourself to just one option when you can have several.