text edition vs primer

text edition and primer both are nouns.

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

As nouns, primer is a hyponym of text edition; that is, primer is a word with a more specific, narrower meaning than text edition:

Other hyponyms of text edition include crammer, introduction, reader.

text edition (noun)	primer (noun)
a book prepared for use in schools or colleges	any igniter that is used to initiate the burning of a propellant
	the first or preliminary coat of paint or size applied to a surface
	an introductory textbook