text edition vs textbook

text edition and textbook both are nouns.

Word	Noun	Adjective	Verb	Adverb
text edition	Yes	No	No	No
textbook	Yes	Yes	No	No

As nouns, text edition and textbook are synonyms defined as:

text edition and textbook: a book prepared for use in schools or colleges

Other synonyms of text edition include school text, schoolbook, text.

text edition (noun)	textbook (noun)
a book prepared for use in schools or colleges	a book prepared for use in schools or colleges

text edition (adjective)	textbook (adjective)
	according to or characteristic of a casebook or textbook; typical