[ kuhn-spahyuhr ]
/ kənˈspaɪər /

verb (used without object), con·spired, con·spir·ing.

to agree together, especially secretly, to do something wrong, evil, or illegal: They conspired to kill the king.
to act or work together toward the same result or goal.

verb (used with object), con·spired, con·spir·ing.

to plot (something wrong, evil, or illegal).

Origin of conspire

1325–75; Middle English < Latin conspīrāre to act in harmony, conspire, equivalent to con- con- + spīrāre to breathe; see spirant, spirit

Related forms

Can be confused

connive conspire

Synonym study

1. See plot. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for conspire

British Dictionary definitions for conspire


/ (kənˈspaɪə) /

verb (when intr, sometimes foll by against)

to plan or agree on (a crime or harmful act) together in secret
(intr) to act together towards some end as if by designthe elements conspired to spoil our picnic

Derived Forms

conspirer, nounconspiringly, adverb

Word Origin for conspire

C14: from Old French conspirer, from Latin conspīrāre to plot together, literally: to breathe together, from spīrāre to breathe
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