speculate - definition in the American English Dictionary - Cambridge Dictionaries Online

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English definition of “speculate”

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speculate

verb [I]  us   /ˈspek·jəˌleɪt/

speculate verb [I] (GUESS)

to form opinions about something without having the necessary information or facts; to make guesses: I’m just speculating about what happened. Officials refused to speculate on the cause of the crash.

speculate verb [I] (TRADE)

social studies to buy and sell with the hope that the value of what you buy will increase and that it can then be sold at a higher price in order to make a profit: He made his money speculating in the gold and silver markets.
(Definition of speculate from the Cambridge Academic Content Dictionary © Cambridge University Press)
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