The phrase "consist in" is commonly used to indicate the essential or defining element of something. Synonyms for this phrase include "lie in," "reside in," and "be rooted in." Others are "depend on," "rest on," "hinge on," "stem from," and "center on." Each of these phrases conveys the sense that the essential nature of something is found in a particular quality or characteristic. For instance, to say that the success of a business venture depends on careful planning suggests that the planning is the defining element that makes the venture successful. Using synonyms for "consist in" can help to add variety and clarity to your writing while conveying the same essential meaning.