speculate
//ˈspɛkjəleɪt//
Verb
speculateInfinitive
speculatePresent tense
speculatedPast tense
speculatedPast participle
speculatingPresent participle
speculatesThird-person singular
1
to form theories or conjectures about a subject without firm evidence; to conjecture or theorize
Scientists speculate that there may be life on other planets.
2
to invest in stocks, property, or other ventures in the hope of gain but with the risk of loss
He speculated in real estate and made a fortune.