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Synonyms

conspire

American  
[kuhn-spahyuhr] / kənˈspaɪər /

verb (used without object)

conspired, conspiring
  1. to agree together, especially secretly, to do something wrong, evil, or illegal.

    They conspired to kill the king.

    Synonyms:
    intrigue, complot
  2. to act or work together toward the same result or goal.

    The wind and rain conspired to strip the trees of their fall color.

    Synonyms:
    cooperate, concur, combine

verb (used with object)

conspired, conspiring
  1. to plot (something wrong, evil, or illegal).

conspire British  
/ kənˈspaɪə /

verb

  1. to plan or agree on (a crime or harmful act) together in secret

  2. (intr) to act together towards some end as if by design

    the elements conspired to spoil our picnic

"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

Usage

What does conspire mean? Conspire commonly means to secretly plan with multiple other people to do something wrong, evil, or illegal.Such a plan is called a conspiracy. Conspiracy can also refer to the act of making such plans—the act of conspiring—or to the group making the plans. The people involved can be called conspirators.In a legal context, conspiracy refers to an agreement by two or more people conspiring to commit a crime.Conspire can also mean to act together to achieve some result. This use often likens inanimate objects to people engaging in a conspiracy, as in I was on time until the traffic and the weather conspired to make me late. Example: In the movie, supervillains conspire to steal all of the world’s bananas.

Related Words

See plot.

Other Word Forms

  • conspirer noun
  • conspiringly adverb
  • nonconspiring adjective
  • preconspire verb
  • unconspired adjective
  • unconspiring adjective
  • unconspiringly adverb

Etymology

Origin of conspire

First recorded in 1350–1400; Middle English, from Middle French conspirer, from Latin conspīrāre “to act in harmony, conspire,” equivalent to con- + spīrāre “to breathe”; con-, spirant, spirit

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.

The lawsuit claimed the group of advertisers had acted against their own economic self-interest to conspire against the platform - saying this violated US antitrust laws designed to promote fair competition between companies.

From BBC • Mar. 26, 2026

In popular usage, it assumes the thing signified must be false, whereas people do conspire, and it is reasonable to devise theories about their schemes.

From The Wall Street Journal • Dec. 23, 2025

Circumstances can conspire against us, but there should be room for improvement.

From MarketWatch • Nov. 28, 2025

Media culture, Laurel Canyon culture, gender culture all conspire to keep Lane and Gala from being what a writer needs most to be: honest.

From Los Angeles Times • Aug. 1, 2025

But the proles, if only they could somehow become conscious of their own strength, would have no need to conspire.

From "1984" by George Orwell