Definition
A "saxist" is simply a shortened, less common term for a saxophonist, someone who plays the saxophone. While "saxophonist" is the standard and more widely recognized term, "saxist" conveys the same meaning in a quicker way. It's like referring to a guitarist as a "guitarist" versus a "guitar player." Using "saxist" might sound a bit informal or slangy. Think of it as the abbreviation of the proper term.