professional baseball(n = noun.act) Array - playing baseball for money; Array
is a kind of sport, baseball, baseball game

baseball, baseball bat, baseball cap, baseball card, baseball clinic, baseball club, baseball coach, baseball diamond, baseball equipment, baseball field, baseball game, baseball glove, baseball league, baseball manager, baseball mitt, baseball play, baseball player, baseball score, baseball season, baseball swing, baseball team, health professional, national baseball hall of fame, professional, professional association, professional basketball, professional boxing, professional dancer, professional football, professional golf, professional golfer, professional life, professional organisation, professional organization, professional person, professional relation, professional tennis, professional tennis player, professional wrestling