medical intern vs doc

medical intern and doc both are nouns.

Word	Noun	Adjective	Verb	Adverb
medical intern	Yes	No	No	No
doc	Yes	No	No	No

As nouns, doc is a hypernym of medical intern; that is, doc is a word with a broader meaning than medical intern:

medical intern: an advanced student or graduate in medicine gaining supervised practical experience
doc: a licensed medical practitioner

Other hypernyms of medical intern include doctor, Dr., MD, medico, physician.

medical intern (noun)	doc (noun)
an advanced student or graduate in medicine gaining supervised practical experience	a licensed medical practitioner