- (obsolete, intransitive) To think, meditate or reflect on a subject; to consider, to deliberate or cogitate.
- (intransitive) To make an inference based on inconclusive evidence; to surmise or conjecture.
- 2013 June 7, David Simpson, “Fantasy of navigation”, in The Guardian Weekly, volume 188, number 26, page 36:
- It is tempting to speculate about the incentives or compulsions that might explain why anyone would take to the skies in [the] basket [of a balloon]: perhaps out of a desire to escape the gravity of this world or to get a preview of the next; […].
- (intransitive, business, finance) To make a risky trade in the hope of making a profit; to venture or gamble.
- (intransitive, programming) To anticipate which branch of code will be chosen and execute it in advance.
(obsolete in English) to meditate
to make an inference based on inconclusive evidence
to make a risky trade
- speculate in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
- speculate in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
- (Classical) IPA(key): /spe.kuˈlaː.te/, [s̠pɛ.kʊˈɫ̪aː.t̪ɛ]
- (Ecclesiastical) IPA(key): /spe.kuˈla.te/, [spɛ.kuˈlaː.t̪ɛ]