1. (

• confirm ,
• corroborate ,
• sustain ,
• substantiate ,
• support ,
• affirm

) establish or strengthen as with new evidence or facts; "his story confirmed my doubts"; "The evidence supports the defendant" ;

2. (

• validate ,
• corroborate

) give evidence for ;

3. (

• corroborate ,
• underpin ,
• bear_out ,
• support

) support with evidence or authority or make more certain or confirm; "The stories and claims were born out by the evidence" ;