QUARTERBACK
quarterback, signal caller, field general
(noun) (American football) the position of the football player in the backfield who directs the offensive play of his team; “quarterback is the most important position on the team”
quarterback, signal caller, field general
(noun) (football) the person who plays quarterback
quarterback
(verb) play the quarterback
Source: WordNet® 3.1
Etymology
Noun
quarterback (plural quarterbacks)
(American football, Canadian football) An offensive back whose primary job is to pass the ball in a play.
(American football, historical) An offensive back who receives the snap (hike) and then blocks the defense from crossing the line of scrimmage; a blocking back.
(rugby football, historical) A position just behind the forwards, or one who plays this position.
Verb
quarterback (third-person singular simple present quarterbacks, present participle quarterbacking, simple past and past participle quarterbacked)
(American football) To play the position of quarterback.
(by extension) To lead a team or group; to be primarily responsible for some group project or activity.
Source: Wiktionary