cor·rob·o·rate 
/kəˈrɑ:bəˌreɪt/ verb
cor·rob·o·rates; cor·rob·o·rat·ed; cor·rob·o·rat·ing /kəˈrɑ:bəˌreɪt/ verb [+ obj] formal : to support or help prove (a statement, theory, etc.) by providing information or evidence
▪ Two witnesses corroborated [=confirmed] his story. — often used as (be) corroborated ▪ The theory has been corroborated by recent studies.
▪ Two witnesses corroborated [=confirmed] his story. — often used as (be) corroborated ▪ The theory has been corroborated by recent studies.
— corroborating adjective
▪ No corroborating evidence was found.
▪ No corroborating evidence was found.
— cor·rob·o·ra·tion /kəˌrɑ:bəˈreɪʃən/ noun [noncount]
▪ the corroboration of his story
/kəˌrɑ:bəˈreɪʃən/ noun [noncount] ▪ the corroboration of his story
— cor·rob·o·ra·tive /kəˈrɑ:bəˌreɪtɪv, kəˈrɑ:bərətɪv/ adjective
▪ corroborative evidence/testimony
/kəˈrɑ:bəˌreɪtɪv, kəˈrɑ:bərətɪv/ adjective ▪ corroborative evidence/testimony
