speculation (
http://definr.com/speculation)
n 1: a message expressing an opinion based on incomplete evidence
[syn:
guess,
conjecture,
supposition,
surmise,
surmisal,
hypothesis]
2: 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" [syn:
conjecture]
3: an investment that is very risky but could yield great
profits; "he knew the stock was a speculation when he
bought it" [syn:
venture]