The term "bring knees" is commonly used to refer to the physical act of lifting the lower legs upward toward the body. But, if you're looking for some alternative ways of phrasing this motion, there are several different synonyms you can use. Some of these include "raise legs," "lift knees," "hoist feet," and "elevate shins." Other variations could include "propel lower limbs," "boost calves," "heave ankles," or "thrust heels." Whether you're looking for a more descriptive way to instruct a workout, or simply trying to switch up your vocabulary, there are many different words you can use to describe the action of bringing your knees up.