1. (noun)guess, conjecture, supposition, surmise, surmisal, speculation, hypothesis a message expressing an opinion based on incomplete evidence
2. (noun)speculation, conjecture 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"
3. (noun)speculation, venture an investment that is very risky but could yieldgreatprofits "he knew the stock was a speculation when he bought it"
4. (noun)meditation, speculation continuous and profound contemplation or musing on a subject or series of subjects of a deep or abstruse nature "the habit of meditation is the basis for all real knowledge"
Definition of 'speculation'
