The phrase "study at waive" could be interpreted in a few different ways, but assuming it means to study without paying for tuition, there are several synonyms that could be used instead. A common term is "study on scholarship," which implies that the student has been awarded funds to cover their educational costs. Another option could be "study with a grant," which refers to a financial award given for a specific purpose, such as education. "Study through a work-study program" is another synonym, which would describe a situation where the student works at the university to help cover their tuition costs. Overall, there are several ways to describe studying without paying tuition using different synonyms.