Evidence (5)
'evidence' is the definition.
(evidence proves something)
This is the entire clue.
(Other definitions for proof that I've seen before include "Conclusive demonstration" , "Decisive evidence" , "Strength of spirit" , "Positive evidence" , "Measure of the strength of alcohol" .)
'evidence' is the definition.
(I know that testimony is a type of evidence)
This is the entire clue.
(Other definitions for testimony that I've seen before include "witness statement" , "Evidence offered by a witness" , "It's given under oath" , "Evidence, declaration" , "Court statement" .)