Dictionary.com
Thesaurus.com
Synonyms

speculate

American  
[spek-yuh-leyt] / ˈspɛk yəˌleɪt /

verb (used without object)

speculated, speculating
  1. to engage in thought or reflection; meditate (often followed by on, upon, or a clause).

    Synonyms:
    cogitate, reflect, think
  2. to indulge in conjectural thought.

    Synonyms:
    theorize, suppose, surmise, guess, conjecture
  3. to engage in any business transaction involving considerable risk or the chance of large gains, especially to buy and sell commodities, stocks, etc., in the expectation of a quick or very large profit.


speculate British  
/ ˈspɛkjʊˌleɪt /

verb

  1. (when tr, takes a clause as object) to conjecture without knowing the complete facts

  2. (intr) to buy or sell securities, property, etc, in the hope of deriving capital gains

  3. (intr) to risk loss for the possibility of considerable gain

  4. (intr) rugby to make an emergency forward kick of the ball without taking any particular aim

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • overspeculate verb (used without object)
  • prespeculate verb (used without object)
  • unspeculating adjective

Etymology

Origin of speculate

First recorded in 1590–1600; from Latin speculātus “watched over,” past participle of speculārī “to watch over, explore, reconnoiter,” verb derivative of specula “watchtower,” noun derivative of specere “to look, regard, see”

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He added that he wouldn’t speculate on how much time Europe has left.

From The Wall Street Journal

His son David speculated that his dad’s mixed feelings about his fast-food career stemmed from a mentality common among children of the Depression: “Excess bothered them. It almost seemed profligate and unnecessary,” he explained.

From The Wall Street Journal

Assistant Chief Constable Vicki Townsend said she understood there was interest around the incident, but urged people "not to speculate".

From BBC

Think of it as a cost-effective way to speculate on a massive market advance while limiting the money you have at risk.

From Barron's

The sheriff said investigators did not know what Guthrie was wearing when she disappeared and did not speculate on how many people could have been involved in taking her.

From Los Angeles Times