- 1to make something last longer synonym extend
- 2 The operation could prolong his life by two or three years. Don't prolong the agony (= of not knowing something) —just tell us who won!
NAmE//prəˈlɔŋ//prolong somethingVerb Forms present simple I / you / we / they prolong
,he / she / it prolongs
,past simple prolonged
,-ing form prolonging