1.NounA dog trained in pursuit of game in the field.
2.NounA defensive player in the field.
3.NounA fieldworker.
4.NounAgent noun of field: one who fields anything.
5.NounA player of the fielding side, whose task is to gather the ball after the batsman has hit it, to catch the batsman out, or to prevent him from scoring.
"His best fielder took the big wicket of the opponent team."