give a boost to

advocate affirm approve back commend confirm defend favor okay praise ratify recommend sanction uphold

accredit attest authenticate bless boost certify champion countenance guarantee push second sustain underwrite warrant witness

back up give green light give one's word give the go-ahead give the nod go along with go to bat for go with lend one's name to rubber-stamp stand behind stand up for stump for subscribe to vouch for

attack censure criticize deny disagree disapprove discourage dissuade invalidate oppose refuse reject renounce veto

halt

protest repel unauthorize

acclaim applaud celebrate commend eulogize exalt glorify laud praise

bless boost hymn magnify push rave root stroke

brag about cry up give a bouquet hand it to hats off to hear it for make much of panegyrize pay tribute to puff up

blame castigate censure condemn criticize debase denounce disapprove humiliate

decrease discourage

encourage expedite facilitate hasten help promote speed

aid assist ballyhoo champion contribute engender forward foster generate patronize plug propagate push serve succor

back up bail out go with lend a hand open doors take care of work for

block check delay halt hinder hurt slow stop

conceal destroy discourage hide ignore impede kill neglect oppose take withhold

cease curtail frustrate obstruct prevent protest