The word "increasers" refers to things or individuals that cause an increase in quantity or amount. However, there are several other synonyms that can be used in place of this word depending on the context of the sentence. These synonyms include boosters, enhancers, amplifiers, escalators, augments, intensifiers, magnifiers, and enlargers. All of these words convey the idea of something or someone that contributes towards an increase. For example, an escalator is a mechanical device that helps people move up or down and can be used to describe something that increases in a similar way, like the escalator of success. Similarly, a magnifier is a device used to increase the apparent size of an object and can be used to describe something that increases in importance or significance. Overall, these synonyms provide a range of options that can be used to express the idea of something that causes an increase.