Although some surgeons may delineate between these two terms, as mentioned above, some surgeons may use them interchangeably.
Some surgeons may use "browpexy" to describe the technique whereby one attempts to stabilize the brow position through eyelid approaches. This does not achieve a long lasting lift, but can give a nice subtle result.
It is important to discuss the goals of the surgery as well as different surgical approaches [coronal, pretrichial, trichophytic, mid-forehead, subciliary, endoscopic and trans-eyelid] with your surgeon. Each technique has its pros and cons and may be appropriate for different patients with different needs, and not all surgeons are well versed in all the different techniques.
Good luck