surgeon vs physician

surgeon and physician both are nouns.

Word	Noun	Adjective	Verb	Adverb
surgeon	Yes	No	No	No
physician	Yes	No	No	No

As nouns, physician is a hypernym of surgeon; that is, physician is a word with a broader meaning than surgeon:

Other hypernyms of surgeon include doc, doctor, Dr., MD, medico.

surgeon (noun)	physician (noun)
a physician who specializes in surgery	a licensed medical practitioner