The term 'calling balls and strikes, say' can be summarized by the job description 'umpiring' (6 letters). Umpiring is a job in which an individual is responsible for officiating a baseball game. This includes making calls on whether a pitch is a ball or a strike, as well as other decisions such as whether a runner is safe or out. Umpires must also enforce the rules of the game and ensure that the players are following them. Umpiring is an important part of the game and requires a great deal of skill and knowledge.