The term PERSON AT HOME can be broken down into two crossword solutions: UMP (3 letters) and UMPIRE (6 letters). UMP is an abbreviation for UMPIRE, which is a person who officiates a sporting event. An UMPIRE is responsible for making sure the rules of the game are followed and that the players are playing fairly. UMPIRE is a more specific term for an UMPIRE, as it refers to someone who officiates a baseball game. Umpires are responsible for making calls on the field, such as whether a pitch is a ball or a strike, and for keeping track of the score.