Baseball is a sport that has been around for centuries and is one of the most popular sports in the world. The term BASEBALL can be broken down into two crossword solutions: STAN (4 letters) and NATIONALPASTIME (15 letters). STAN is an abbreviation for Standard Rules of Baseball, which are the official rules of the game. NATIONALPASTIME is a term used to describe baseball as it is the most popular sport in the United States.