give nod

authenticate confirm justify substantiate validate verify

approve certify document endorse establish okay prove ratify strengthen support sustain

bear out check on check out check up declare true double-check rubber-stamp

disprove invalidate veto

contradict deny disagree disapprove discredit oppose refuse reject

disallow disclaim refute

accredit assign authorize designate elect

appoint cast charge choose commission constitute depute deputize invest license mandate name nominate ordain select warrant

place trust in swear in

deny reject

ignore refuse retract

keep