Washington Ballplayer is a term used to refer to a professional baseball player who plays for the Washington Nationals, a Major League Baseball team based in Washington, D.C. The team was founded in 1969 and has been a member of the NATIONAL League since 2005. The term 'Washington Ballplayer' is often used to refer to any player who has played for the Nationals, regardless of their current team affiliation. The crossword solution for the term Washington Ballplayer is NATIONAL, an 8-letter word.