Synonyms of 'assure'

assert, asseverate, back, bond, certify, clinch, confirm, console, countersign, determine, ensure, establish, promise, satisfy, sell, state, support, swear, vouch, relieve, reassure, plight, pledge, persuade, nerve, nail down, insure, inspirit, inspire, hearten, guaranty, guarantee, fix, endorse, encourage, embolden, ease, depose, depone, decide, convince, comfort, cinch, cheer, bring round, bring over, book, bolster, avouch, attest, ascertain, warrant, vow, underwrite, troth, testify, stabilize, sponsor, sort out, solace, sign, settle, secure