The term 'ADDS TO' can be described in three different ways, each with a different number of letters. UPS (3 letters) is an acronym for United Parcel Service, a package delivery service. AUGMENTS (8 letters) means to make something bigger or better. INCREASES (9 letters) means to make something larger in size or amount. All three terms refer to the same concept, which is to make something larger or add to it.