American English

Definition of substantiate verb from the Oxford Advanced American Dictionary

 

substantiate

 verb
verb
NAmE//səbˈstænʃiˌeɪt//
 
substantiate something (formal)Verb Forms present simple I / you / we / they substantiate
 
he / she / it substantiates
 
past simple substantiated
 
-ing form substantiating
 
 
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to provide information or evidence to prove that something is true The results of the tests substantiated his claims. They made accusations which could not be substantiated.
substantiation
 
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NAmE//səbˌstænʃiˈeɪʃn//
 
noun [uncountable]
See the Oxford Advanced Learner's Dictionary entry: substantiate