substantiate
🇺🇸
/səbˈstænʃieɪt/
🇬🇧
/səbˈstænʃieɪt/
To prove that something is true by giving proof or evidence.
The scientist substantiated his theory with clear experimental results.
과학자가 명확한 실험 결과로 그의 이론을 입증했습니다.