›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 artistimportance
/ɪmˈpɔr·təns/n[U]›He stressed the importance of fruits and vegetables in the diet.importantly
/ɪmˈpɔr·tənt·li/adv›She has a pleasant personality, but more importantly, she is well qualified for the job.