"Get (sb) up" is a commonly used phrase that means to wake someone up from their sleep or to help them to stand up from a seated or lying position. However, there are several synonyms for this phrase that can be used to vary your language. Some alternatives include "rouse," "awaken," "stir," "arouse," "encourage," "motivate," "propel," "elevate," and "boost." Each of these words can be used in a specific context to add more diversity and depth to your communication. So, next time you want to say "get (sb) up," consider using one of these synonyms to express your ideas more clearly.