There are many synonyms that can be used to describe the phrase "be the next big thing." Some alternative phrases include "rise to fame," "make it big," "become a sensation," "catapult to success," "achieve stardom," and "attain celebrity status." Each of these phrases conveys the same meaning as "be the next big thing," but with a slightly different nuance. While some suggest a rapid ascent to success, others imply a sustained period of success and recognition. Regardless of which phrase is used, they all describe the same ultimate goal: to achieve widespread recognition and acclaim in one's chosen field.