prolong 2verbdomain: v statePrinceton WordNet [ver.3.1]EnglishDefinitionlengthen or extend in duration or spaceReport errorPath to highest hypernymMorphologySynset graphExamples1.keep up the good work2.We sustained the diplomatic negotiations as long as possible3.prolong the treatment of the patientSynonymssustain 1lengthen or extend in duration or spacekeep up 2lengthen or extend in duration or space