diplomatist vs consul

diplomatist and consul both are nouns.

Word	Noun	Adjective	Verb	Adverb
diplomatist	Yes	No	No	No
consul	Yes	No	No	No

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

diplomatist: an official engaged in international negotiations
consul: a diplomat appointed by a government to protect its commercial interests and help its citizens in a foreign country

diplomatist (noun)	consul (noun)
an official engaged in international negotiations	a diplomat appointed by a government to protect its commercial interests and help its citizens in a foreign country