Show conclusively to be true (5)
I believe the answer is:
prove
(Other definitions for prove that I've seen before include "Demonstrate (truth)" , "Verify" , "Establish the validity of" , "Demonstrate beyond doubt" , "Demonstrate conclusively" .)
I believe the answer is:
prove
(Other definitions for prove that I've seen before include "Demonstrate (truth)" , "Verify" , "Establish the validity of" , "Demonstrate beyond doubt" , "Demonstrate conclusively" .)