houseman vs medico

houseman and medico both are nouns.

Word	Noun	Adjective	Verb	Adverb
houseman	Yes	No	No	No
medico	Yes	No	No	No

As nouns, medico is a hypernym of houseman; that is, medico is a word with a broader meaning than houseman:

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

Other hypernyms of houseman include doc, doctor, Dr., MD, physician.

houseman (noun)	medico (noun)
an advanced student or graduate in medicine gaining supervised practical experience	a licensed medical practitioner
	a student in medical school