i Register
In some senses, playbook is marked as figuratively, US. Watch for register when choosing this word.
noun
A book containing the text of a play or plays.
Near-synonym: play
A book of games and amusements for children.
Near-synonym: gamebook
A book of strategies (plays) for use in American football (and by extension other sports or disciplines).
A book or (especially) any set of commonly employed tactics, strategies, and tips.
Near-synonym: cookbook
A Look at Satan's "Playbook"