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English definition of “complicate”

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complicate

verb [T] uk   /ˈkɒm.plɪ.keɪt/ us    /ˈkɑːm-/
C1 to make something more difficult to deal with, do, or understand: It will only complicate the situation if we invite his old girlfriend as well. The rescue operation has been complicated by bad weather. These new rules have complicated the tax system even further. If one illness complicates another illness, it makes the other illness worse: The breathing problem has now been complicated by a chest infection.
(Definition of complicate from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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