medical extern vs doc

medical extern and doc both are nouns.

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

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

medical extern: a nonresident doctor or medical student; connected with a hospital but not living there
doc: a licensed medical practitioner

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

medical extern (noun)	doc (noun)
a nonresident doctor or medical student; connected with a hospital but not living there	a licensed medical practitioner