text vs crammer

text and crammer both are nouns.

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

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

Other hyponyms of text include introduction, primer, reader.

text (noun)	crammer (noun)
the words of something written	a textbook designed for cramming
the main body of a written work (as distinct from illustrations or footnotes etc.)	a special school where students are crammed
a book prepared for use in schools or colleges	a student who crams
a passage from the Bible that is used as the subject of a sermon	a teacher who is paid to cram students for examinations

text (verb)	crammer (verb)
to send a message by SMS or similar text-based messaging service