give go-ahead

accept advocate agree authorize back certify confirm endorse establish license okay permit push for ratify recommend sanction sign support uphold

accede accredit acquiesce affirm assent bless boost buy charter concur consent dig empower encourage groove maintain mandate pronounce seal second validate

buy into get behind go along with hats off to lap up make law make valid sign off on stump for subscribe to thumbs-up

contradict decline deny destroy disagree disallow disapprove discourage disprove dispute dissuade invalidate oppose protest refuse reject renounce repudiate veto

condemn differ dissent object