half‧back /ˈhɑːfbæk $ ˈhæf-/ noun [countable]

1. a player in a game of football, rugby, hockey etc who plays in the middle part of the field

2. a player in American football who, at the start of play, is behind the front line of players and next to the fullback

[TahlilGaran] Dictionary of Contemporary English ▲