divination vs conjecture

divination and conjecture both are nouns.

Word	Noun	Adjective	Verb	Adverb
divination	Yes	No	No	No
conjecture	Yes	No	Yes	No

As nouns, conjecture is a hypernym of divination; that is, conjecture is a word with a broader meaning than divination:

Other hypernyms of divination include guess, hypothesis, speculation, supposition, surmisal, surmise.

divination (noun)	conjecture (noun)
the art or gift of prophecy (or the pretense of prophecy) by supernatural means	a hypothesis that has been formed by speculating or conjecturing (usually with little hard evidence)
a prediction uttered under divine inspiration	reasoning that involves the formation of conclusions from incomplete evidence
successful conjecture by unusual insight or good luck	a message expressing an opinion based on incomplete evidence

divination (verb)	conjecture (verb)
	to believe especially on uncertain or tentative grounds