back up Synonyms

support back off back back down pull back bear out go back withdraw vindicate verify validate uphold sustain draw back move back choke off attest to bear witness to stick up for stand behind side with go backwards aid and abet vouch for move backwards buoy up clog up give one's support to substantiate corroborate congest confirm clog choke champion certify bolster authenticate assist approve defend encourage endorse second sanction reinforce recede ratify prove promote