warrant

1 to assume responsibility for the satisfactory quality or performance of the computer company unconditionally warrants all of its products for one full year Synonyms guarantee, guaranty Related Words attest, authenticate, avouch, certify, testify (to), vouch (for), witness; assure, bond, contract, covenant; pledge, plight, stipulate, swear, undertake, vow; adhere, assert, aver, avow, declare, insist; insure

2 to give official acceptance of as satisfactory the state constitution warrants these measures Synonyms accredit, approbate, authorize, clear, confirm, finalize, formalize, homologate, OK (or okay), ratify, sanction, approveRelated Words accept, acknowledge, affirm; certify, endorse (also indorse), validate; bless, canonize, sanctify; initial, rubber-stamp, sign, sign off (on); allow, enable, legalize, license (also licence), pass, permit; reapproveNear Antonyms ban, enjoin, forbid, illegalize, interdict, prohibit, proscribe; disregard, ignore, neglect, overlook; rebuff, rebut, refuse, spurnAntonyms decline, deny, disallow, disapprove, negative, reject, turn down, veto

3 to have as a requirement the situation warrants your immediate attention Synonyms bear, challenge, claim, demand, necessitate, require, take, want, needRelated Words entail, involve; ask, beg, claim, clamor (for), cry (for); hurt (for), lack; command, enjoin, exact, insist, press, quest, stipulateNear Antonyms own, possessAntonyms have, hold

4 to state as a fact usually forcefully we'll all be dead before that happens, I warrant Synonyms affirm, allege, assert, aver, avouch, avow, contend, declare, insist, maintain, profess, protest, purport, claimRelated Words announce, broadcast, proclaim; argue, rationalize, reason; confirm, justify, vindicate; defend, persevere, support, uphold; reaffirm, reassertNear Antonyms abandon; disavow, disclaim, disown, negate, negative, reject, repudiate; challenge, dispute, question; confute, disprove, rebut, refute; contradict, counterAntonyms deny, gainsay

5 to give official or legal power to bailiffs are warranted to enforce the subpoena Synonyms accredit, certify, charter [British], commission, empower, enable, invest, license (also licence), qualify, vest, authorizeRelated Words approve, clear, credential, endorse (also indorse), OK (or okay), sanction; affirm, confirm, validate; inaugurate, induct, initiate, install, instate, swear in; allow, let, permit; enfranchise, entitle, privilegeNear Antonyms ban, bar, block, constrain, deny, disallow, disbar, discourage, disenfranchise, disfranchise, exclude, hinder, hold back, impede, inhibit, obstruct, prevent, shut out, stop; enjoin, forbid, interdict, outlaw, prohibit, proscribe, vetoAntonyms disqualify