notebook vs playbook

notebook and playbook both are nouns.

Word	Noun	Adjective	Verb	Adverb
notebook	Yes	No	No	No
playbook	Yes	No	No	No

As nouns, playbook is a hyponym of notebook; that is, playbook is a word with a more specific, narrower meaning than notebook:

notebook: a book with blank pages for recording notes or memoranda
playbook: a notebook containing descriptions and diagrams of the plays that a team has practiced (especially an American football team)

Other hyponyms of notebook include commonplace book, jotter, coil notebook, spiral notebook.

notebook (noun)	playbook (noun)
a small compact portable computer	a scheme or set of strategies for conducting a business campaign or a political campaign
a book with blank pages for recording notes or memoranda	a book containing the scripts of one or more dramatic plays
	a notebook containing descriptions and diagrams of the plays that a team has practiced (especially an American football team)