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n. Abbr. QB Football
The offensive backfield player whose position is behind the line of scrimmage and who usually calls the signals for the plays and receives the ball when snapped.
v. quar·ter·backed, quar·ter·back·ing, quar·ter·backs
1. Football To direct the offense of.
2. Slang To lead or direct the operations of: "needed someone to quarterback the [brain trust] for the first U.S. ICBM program" (Forbes).
To play quarterback.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Monday-morning quarterbacking wisdom after the event, esp by spectators
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014