When it comes to expressing excellence, there are many synonyms that can be used in place of the phrase "be excellent." Some of the most common synonyms include "be exceptional," "be outstanding," "be superb," "be remarkable," and "be phenomenal." Other synonyms that can be used include "be incomparable," "be incomparable," "be magnificent," and "be brilliant." Ultimately, the word or phrase used to express excellence will depend on the context and the desired tone of the communication. Whether it is in business, education, or personal relationships, using synonyms to describe excellence is a great way to enhance communication and convey the desired message.