Meaning of “complicate” in the English Dictionary

british dictionary

"complicate" in British English

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complicateverb [ T ]

uk /ˈkɒm.plɪ.keɪt/ us /ˈkɑːm.plə.keɪt/

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 Learner’s Dictionary & Thesaurus © Cambridge University Press)

"complicate" in American English

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complicateverb [ T ]

us /ˈkɑm·plɪˌkeɪt/

to make something more difficult to deal with or do:

The rescue operation was complicated by bad weather.
His recovery was complicated by his generally poor condition.

(Definition of “complicate” from the Cambridge Academic Content Dictionary © Cambridge University Press)