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English definition of “conspire against sth”

conspire against sth

(also conspire to do sth)
verb [I] uk phrasal verb with conspire   /kənˈspaɪər/ us    /-ˈspaɪr/
If events or conditions conspire against something or conspire to do something, they combine in such a way that they spoil your plans: The weather had conspired to ruin their day out. I'd planned a romantic evening together, but circumstances conspired against it - friends arrived unexpectedly and then Dave was called out to an emergency.Preventing and impedingLimiting and restricting
(Definition of conspire against sth from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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