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English definition of “long”

long

adjective [-er/-est only] (TIME)   /lɔŋ/
being an amount of time that is more than average or usual , or being of a particular amount of time : The days are longer in summer than in winter . We had to wait a long time to see the doctor . We went away for a long weekend in April (= Saturday , Sunday , and an extra day or days ). Something that is long-lost has not been seen for many years before appearing suddenly : A long-lost diary was discovered among his papers .
(Definition of long adjective (TIME) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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