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English definition of “speculate”

speculate

verb [I, T]     /ˈspekjəleɪt/
to guess possible answers to a question when you do not have enough information to be certain: The police refused to speculate about the cause of the accident. [+ that] The newspapers have speculated that they will get married next year.Guesses and assumptions
(Definition of speculate verb from the Cambridge Learner's Dictionary © Cambridge University Press)

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