crammer vs school text

crammer and school text both are nouns.

Word	Noun	Adjective	Verb	Adverb
crammer	Yes	No	No	No
school text	Yes	No	No	No

As nouns, school text is a hypernym of crammer; that is, school text is a word with a broader meaning than crammer:

Other hypernyms of crammer include schoolbook, text, text edition, textbook.

crammer (noun)	school text (noun)
a textbook designed for cramming	a book prepared for use in schools or colleges
a special school where students are crammed
a student who crams
a teacher who is paid to cram students for examinations