The phrase "upped 'em" is an informal and colloquial expression used to describe an action of increasing or raising something. However, if you're looking for synonyms, there are several options that you can consider. Some of the popular alternatives include "elevated," "heightened," "enhanced," "amplified," and "boosted." These words are commonly used in various contexts, such as in sports, finance, business, and personal development. For instance, a team can elevate their performance by working on their weaknesses, a company can boost its sales by introducing new products, and an individual can enhance their skills by attending training sessions. In summary, there are many synonyms that you can use for "upped 'em" that can help you communicate your ideas more clearly and effectively.