The term 'Rises Rapidly' can be expressed in two different ways in a crossword puzzle, with the solutions being 'SOARS' (5 letters) and 'Shoots Up' (8 letters). Both of these terms refer to a rapid increase in height or altitude, usually referring to an object such as an airplane or a rocket. The term 'SOAR' is often used to describe the flight of birds, while 'shoots up' is more commonly used to describe a sudden, sharp increase in something.