Origin: Latin suffix -ure
Conjecture has 6 different meanings across 2 categories:
a hypothesis that has been formed by speculating or conjecturing (usually with little hard evidence)
"speculations about the outcome of the election"
"he dismissed it as mere conjecture"
a message expressing an opinion based on incomplete evidence
"Based on the empty parking lot and her quiet demeanor, I'm offering just conjecture that she left early without telling anyone."
reasoning that involves the formation of conclusions from incomplete evidence
"The detective dismissed her initial speculation as mere conjecture since there was no physical evidence to support it yet."
A statement or an idea which is unproven, but is thought to be true; a guess.
"Despite having no concrete evidence, her conjecture that the missing files were deleted by the intern turned out to be correct."
to believe especially on uncertain or tentative grounds
"Scientists supposed that large dinosaurs lived in swamps"
To guess; to venture an unproven idea.
"Based on the scattered clues, I can only conjecture that the missing document was stolen by someone inside the office."