Definition of substantiate verb from the Oxford Advanced Learner's Dictionary

 

substantiate

 verb
verb
BrE BrE//səbˈstænʃieɪt//
 
; NAmE NAmE//səbˈstænʃieɪt//
 
Verb Forms present simple I / you / we / they substantiate
BrE BrE//səbˈstænʃieɪt//
 
; NAmE NAmE//səbˈstænʃieɪt//
 
he / she / it substantiates
BrE BrE//səbˈstænʃieɪts//
 
; NAmE NAmE//səbˈstænʃieɪts//
 
past simple substantiated
BrE BrE//səbˈstænʃieɪtɪd//
 
; NAmE NAmE//səbˈstænʃieɪtɪd//
 
past participle substantiated
BrE BrE//səbˈstænʃieɪtɪd//
 
; NAmE NAmE//səbˈstænʃieɪtɪd//
 
-ing form substantiating
BrE BrE//səbˈstænʃieɪtɪŋ//
 
; NAmE NAmE//səbˈstænʃieɪtɪŋ//
 
 
jump to other results
substantiate something (formal) 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. Word Origin mid 17th cent.: from medieval Latin substantiat- ‘given substance’, from the verb substantiare.
See the Oxford Advanced American Dictionary entry: substantiate