retrace vs conjecture

retrace is not a noun while conjecture is a noun.

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

As verbs, conjecture is a hypernym of retrace; that is, conjecture is a word with a broader meaning than retrace:

Other hypernyms of retrace include hypothecate, hypothesise, hypothesize, speculate, suppose, theorise, theorize.

retrace (noun)	conjecture (noun)
	a hypothesis that has been formed by speculating or conjecturing (usually with little hard evidence)
	reasoning that involves the formation of conclusions from incomplete evidence
	a message expressing an opinion based on incomplete evidence

retrace (verb)	conjecture (verb)
reassemble mentally	to believe especially on uncertain or tentative grounds
to go back over again