Confirm (6)
'confirm' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for certify that I've seen before include "Declare; endorse" , "Formally confirm" , "Authorise officially" .)
'confirm' is the definition.
(I know that confirm can be written as corroborate)
This is the entire clue.
(Other definitions for corroborate that I've seen before include "Confirm - support" , "Back up (a statement)" , "Bear out" , "Confirm (a statement)" .)
'confirm' is the definition.
(to attest to something is to prove or confirm it)
This is all the clue.
(Other definitions for attest that I've seen before include "Corroborate" , "Adjure" , "University town" , "say, in court" , "Vouch for" .)
(Other definitions for clinch that I've seen before include "Settle conclusively, a deal say" , "Clutch" , "seal" , "Grapple - confirm" , "Fierce embrace" .)
'confirm' is the definition.
(I know that verify is a more specific form of confirm)
This is the entire clue.
(Other definitions for verify that I've seen before include "Check to be true" , "Support" , "Establish truth or accuracy of" , "Prove to be true" , "Demonstrate" .)
'confirm' is the definition.
(I know that validate is a more specific form of confirm)
This is the entire clue.
(Other definitions for validate that I've seen before include "Confirm or authenticate" , "Confirm correctness of" , "Long poem" , "Prove" , "Declare legally acceptable" .)
'confirm' is the definition.
(bear out can mean to confirm or prove)
This is the entire clue.
(Other definitions for bear out that I've seen before include "Confirm - or carry away" , "Confirm - or carry from house" , "Corroborate, support with evidence" , "Confirm (something)" .)
'confirm' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for aver that I've seen before include "protest" , "Declare or insist" , "State (to be the case)" , "Maintain - state" , "Say firmly, rave if necessary" .)