/play"book'/ , n.
1. (in Elizabethan drama) the script of a play, used by the actors as an acting text.
2. a book containing the scripts of one or more plays.
3. Football. a notebook containing descriptions of all the plays and strategies used by a team, often accompanied by diagrams, issued to players for them to study and memorize before the season begins.
4. Informal. any plan or set of strategies, as for outlining a campaign in business or politics.
[ 1525-35; PLAY + BOOK ]