When discussing the degree or limit to which something is true or possible, "a certain extent" is a common phrase used. However, there are a variety of synonyms that can be used to add variety and emphasis to your writing. Some alternatives include "to some degree," "to a certain point," "partially," "in part," "somewhat," "to a limited extent," "in a way," "to a degree," "to a certain degree," and "to a moderate extent." Choosing the right synonym can help you express exactly what you mean and make your writing more engaging and effective.