guarantee

I

(New American Roget's College Thesaurus)

v. vouch, undertake, warrant; pledge; promise, insure, secure. See security, certainty.

II

(Roget's IV) v.

1. [To certify]

Syn. attest, testify, aver, vouch for, declare, assure, ensure, answer for, be responsible for, stand behind, become surety for, evince, evidence, endorse, secure, make sure, make certain, warrant, insure, witness, prove, reassure, support, affirm, confirm.

2. [To give security]

Syn. pledge, give bond, go bail, wager, stake, give a guarantee, stand good for, mortgage, pawn, back, sign for.

3. [To promise]

Syn. swear, assure, insure, cross one's heart*; see promise 1 .

III

(Roget's 3 Superthesaurus)

I

n.

warranty, pledge, assurance, bond, promise, contract, word of honor, covenant, surety, security, oath.

II

v.

warrant, promise, pledge, assure, *give one's word of honor, back, certify, *stand behind, vouch for, ensure, insure, protect, contract, underwrite.

IV

(Roget's Thesaurus II) I noun 1. An assumption of responsibility, as one given by a manufacturer, for the quality, worth, or durability of a product: guaranty, surety, warrant, warranty. See OBLIGATION. 2. A declaration that one will or will not do a certain thing: assurance, covenant, engagement, guaranty, pledge, plight2, promise, solemn word, vow, warrant, word, word of honor. See OBLIGATION. II verb 1. To give a promise of payment of: secure. See MONEY, OBLIGATION. 2. To assume responsibility for the quality, worth, or durability of: certify, guaranty, warrant. See OBLIGATION. 3. To render certain: assure, ensure, insure, secure, warrant. Informal: cinch. See CERTAIN.