Same word as endorse:
accredit,advocate,affirm,approve,attest, authenticate,back,back up,bless,boost,certify,champion,commend,confirm,countenance,defend,favor, give a boost to, give green light, give one's word, give the go-ahead, give the nod, go along with, go to bat for, go
accredit,advocate,affirm,approve,attest, authenticate,back,back up,bless,boost,certify,champion,commend,confirm,countenance,defend,favor, give a boost to, give green light, give one's word, give the go-ahead, give the nod, go along with, go to bat for, go