Directions: Scan the following passage and find the words which have roughly the same meanings as those given below.

     However with the transformation of the nation, society and technology, folk games too began to evolve into spectator sports. After the Civil War, baseball became a popular sport and no longer an archaic folk games. Structure and organization were introduced gradually into the game and increased public participation. The sport at first excluded the public, but as economic interests infiltrated the game, the need for audiences and spectators arose. The audience of baseball was instrumental in the transformation of baseball. The battling leagues and team rivalries created a sector for the American public to participate in baseball.