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speculate

verbattested in dialogue

  • United Kingdom//ˈspɛk.jʊˌleɪt//
  • Canada//ˈspɛk.jəˌleɪt//
  • Australia//ˈspek.jəˌlæɪt//

To make an inference based on inconclusive evidence; to surmise or conjecture.

verb

  1. 1

    obsoleteTo think, meditate or reflect on a subject; to consider, to deliberate or cogitate.

    It is remarkable that persons who speculate the most boldly often conform with the most perfect quietude to the external regulations of society.

  2. 2

    To make an inference based on inconclusive evidence; to surmise or conjecture.

    We can speculate that in many instances the sharks are not feeding on their victims, but only in a few cases can we guess what they are doing.

    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; […].

  3. 3

    To make a risky trade in the hope of making a profit; to venture or gamble.

    Some preliminary legal arrangements were made, but the scheme proceeded no further, as the various local authorities concerned were unwilling to speculate public funds on what was, even at that date, a will o' the wisp.

  4. 4

    To anticipate which branch of code will be chosen and execute it in advance.

Etymology

Borrowed from Latin speculātus, perfect active participle of speculor (“to watch, observe, examine, spy”) (see -ate (verb-forming suffix)), from specula (“a watchtower”), ultimately from speciō (“to look at”).

Forms

past tense
speculated
past participle
speculated
present participle
speculating
third person singular
speculates
The neighbouring pagesAlphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.

Lexical content from Wiktionary, under CC BY-SA 4.0 · Source entry · Data version 2026-08-23

Rank among the words of the OpenSubtitles 2018 corpus — film and television subtitles, so spoken rather than written usage (CC BY-SA 3.0).