"playbooks" in the noun sense

1. playbook

a notebook containing descriptions and diagrams of the plays that a team has practiced (especially an American football team)

2. playbook

a book containing the scripts of one or more dramatic plays

"the 1963 playbook leaves out the whole first scene"

3. playbook

a scheme or set of strategies for conducting a business campaign or a political campaign

"they borrowed a page from the playbook of the opposition"

Source: WordNet® (An amazing lexical database of English)

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