prompt copy vs promptbook

prompt copy and promptbook both are nouns.

Word	Noun	Adjective	Verb	Adverb
prompt copy	Yes	No	No	No
promptbook	Yes	No	No	No

As nouns, prompt copy and promptbook are synonyms defined as:

prompt copy and promptbook: the copy of the playscript used by the prompter

prompt copy (noun)	promptbook (noun)
the copy of the playscript used by the prompter	the copy of the playscript used by the prompter