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English definition of “speculation”

speculation

noun [C or U] uk   /ˌspek.jʊˈleɪ.ʃən/ us  

speculation noun [C or U] (GUESS)

C1 the activity of guessing possible answers to a question without having enough information to be certain: Rumours that they are about to marry have been dismissed as pure speculation. Speculation about his future plans is rife. [+ that] News of the president's illness fuelled/prompted speculation that an election will be held later in the year.

speculation noun [C or U] (TRADING)

the act of speculating in order to make a profit
(Definition of speculation from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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