The crossword solution for the term 'prefix with space or dynamic' is AERO. AERO is a prefix that is used in many different contexts, such as aerodynamics, aerospace engineering, and aviation. It is derived from the Greek word for air, and it is often used to refer to things related to air or the atmosphere. In the context of space or dynamic, AERO is used to refer to something that is related to the movement of air or the atmosphere.