Definition of "playbook" []

• A book containing the scripts of dramatic plays. (noun)
• Sports A notebook containing descriptions and diagrams of the plays of a team, especially a football team. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "In the NFL, the playbook is a sacred hardbound diary of trust."
• "This "playbook" is an enumeration of perfectly valid criticisms against ID, and you spin it like a liability for my position!"
• "Already, Washington's whole playbook is being rethought."