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English definition of “important”


adjective  /ɪmˈpɔr·tənt/ us  
of great value, meaning, or effect: an important discovery [+ that clause] It’s important that you tell the doctor all your symptoms. Important also means having great influence: an important modern artist
noun [U]  /ɪmˈpɔr·təns/ us  
He stressed the importance of fruits and vegetables in the diet.
adverb  /ɪmˈpɔr·tənt·li/ us  
She has a pleasant personality, but more importantly, she is well qualified for the job.
(Definition of important from the Cambridge Academic Content Dictionary © Cambridge University Press)
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