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something that is important has a major effect on someone or something, for example because it affects someone’s life or the way a situation develops
important, serious, large, or great
important and deserving attention
very important, necessary, or essential
something that is crucial is extremely important because it has a major effect on the result of something
essential to the existence, development, or success of something
something that is central is extremely important, and often causes something else to happen or develop
serious, useful, or important
… a language for human communication which has been invented and has not developed naturally
money, food, or clothes given to poor people
spectacles; boiled sweets, candy; soft aniseed-flavoured jelly sweets coated with blue and pink sugar sprinkles
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Free thesaurus definition of important from the Macmillan English Dictionary - a free English dictionary online with thesaurus and with pronunciation from Macmillan Publishers Limited.