Synonyms for Warrant:
n.motivation, in justification of something, ground, occasion, motive, pretext, cause, point. basis, true, working papers, reason, licence, foundation, card, justification, building permit. evidence, commit, proof, swear, testimony, give (someone) your word, vouchsafe, corroboration, attestation, substantiation, demonstration, testimonial, verification, testament. chevron, body armor, cruiser, earnest, token, flak jacket, Denver boot, boot, baton, cuffs, breathalyzer, security, billy club, pawn. start-off, surety, catalyze, inaugurate, make, obligation, trigger, set off, form, bring about, invent, create. engagement, solemn word, covenant, vow, plight, word of honor, assurance, word. allow, law. •authorization (noun)
approval, empowerment, guarantee, certificate, permit, agreement, entitlement, designation, word, commission, pawn, warranty, certification, pass, enfranchisement, foundation, credentials, testimonial, affirmation, authentication, verification, sanction, authorization, official document, permission, summons, notarization, blessing, pledge, subpoena, validation, credential, token, license, basis, confirmation, passport, assurance, earnest, security.
imprimatur, stock warrant, justify, endorsement, countenance, warranty, sanction, stock-purchase warrant, warrantee, guarantee.
•word of honor (noun)
ratify, affirm, admit, assert, maintain, state, corroborate, endorse, pledge, approve, submit, claim, sustain, proclaim, validate, pronounce, profess, declare, assure, contend, adjure, attest, aver, set down, acknowledge, avouch, certify, verify, propound, testify, support, promise, express, accept.
license, authorize, empower, consent, authenticate, notarize, countersign, assent, sanction, designate, enfranchise, permit, commission, deputize, ordain, denominate, confirm, enable, entitle, agree, bless.
secure, bond, vouch, safeguard, insure, guarantee, ensure.
•guarantee, justify, authorize (verb)
promise, assure, ensure, claim, assert, secure, contend, approve, vow, endorse, insure, swear, avouch, empower, state, declare, certify, entitle, maintain, affirm, attest.
building permit, summons, corroboration, attestation, allow, solemn word, law, word of honor, working papers, basis. verification, evidence, vow, testimonial, testament, swear, substantiation. pawn, assurance, testimony. demonstration, covenant, token. engagement. reason, security. word. foundation. card. pass. •declaration
•Other relevant words:
demonstration, trigger, covenant, commit, law, justify, obligation, countenance, endorsement, building permit, occasion, inaugurate, stock warrant, breathalyzer, testimonial, boot, foundation, engagement, cuffs, surety, chit, token, create, passport, vow, stock-purchase warrant, pawn, invent, verification, official document, proof, testimony, swear, pass, motive, assurance, motivation, summons, attestation, cause, baton, certificate, true, warranty, allow, chevron, solemn word, card, catalyze, pretext, subpoena, vouchsafe, imprimatur, credential, credentials, ground, make, point, testament, reason, earnest, basis, word, corroboration, cruiser, form, evidence, plight, warrantee, justification, word of honor, licence, security, substantiation.