What is another word for blocking back?
Pronunciation: [blˈɒkɪŋ bˈak] (IPA) 
A blocking back in American football is a player who primarily blocks for another player, typically a running back or quarterback. There are a few synonyms for this term, including fullback, blocker, and lead blocker. The fullback is typically the primary blocking back on a team and is responsible for creating running lanes for the running back or protecting the quarterback. A blocker is a general term for any player who blocks for another player. A lead blocker is a player who runs ahead of the ball carrier to clear a path for him. The use of blocking backs is essential in American football to protect the ball carrier and help them gain yards.
