1. A book of dramatic compositions.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• playbook,
• plybook,
• plaaybook,
• Pleybook,
• olay book,
• llay book,
• 0lay book,
• pkay book,
• ppay book,
• poay book,
• plzy book,
• plsy book,
• plwy book,
• plqy book,
• plat book,
• plag book,
• plah book,
• plau book,
• pla7 book,
• pla6 book

The adjective form of the term "play book" is "playbook".

The plural form of "play book" is "play books"

The singular form of the word "play book" is "playbook"