to think or infer without certain or strong evidence; conjecture; guess.

to conjecture or guess.

a matter of conjecture.

an idea or thought of something as being possible or likely.

a conjecture or opinion.

noun

calculation , knowledge , measurement

verb

question , wonder

noun

assumption , attempt , conjecture , deduction , guesstimate , guesswork , hunch , hypothesis , idea , inference , notion , opinion , possibility , presumption , sneaking suspicion , speculation , supposition , suspicion , theory , thoughtnotes:demise is the time when something ends or death; surmise is a message expressing an opinion based on incomplete or little evidence , belief , conclusion , extrapolation , guess , peradventure

verb

assume , conclude , conjecture , consider , deduce , fancy , guess , guesstimate , hazard a guess , hypothesize , imagine , infer , opine , presume , pretend , regard , risk assuming , speculate , suppose , suspect , take a shot , take a stab , theorize , think , venture a guessnotes:demise is the time when something ends or death; surmise is a message expressing an opinion based on incomplete or little evidence , assumption , attempt , believe , conclusion , deduction , deem , extrapolate , inference , judge , notion , opinion , speculation