conquistador vs explorer

conquistador and explorer both are nouns.

Word	Noun	Adjective	Verb	Adverb
conquistador	Yes	No	No	No
explorer	Yes	No	No	No

As nouns, explorer is a hypernym of conquistador; that is, explorer is a word with a broader meaning than conquistador:

conquistador: an adventurer (especially one who led the Spanish conquest of Mexico and Peru in the 16th century)
explorer: someone who travels into little known regions (especially for some scientific purpose)

Other hypernyms of conquistador include adventurer.

conquistador (noun)	explorer (noun)
an adventurer (especially one who led the Spanish conquest of Mexico and Peru in the 16th century)	someone who travels into little known regions (especially for some scientific purpose)