Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Thesaurus

guarantee

verb

Synonyms and Antonyms of guarantee

  1. 1 to assume responsibility for the satisfactory quality or performance of <the shop will guarantee all work done on the car for 30 days> Synonyms warrant, guarantyRelated 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. 2 to make sure, certain, or safe <I can guarantee that you'll feel better after using my product for 30 days> Synonyms assure, cinch, ensure, guaranty, ice, insure, secureRelated Words attest, certify, vouch, warrant, witness; pledge, promise, swearNear Antonyms enfeeble, undermine, weaken

  3. 3 to state clearly and strongly <I guarantee that this movie is better than the last one in the series> Synonyms affirm, aver, avouch, avow, declare, assert, lay down, professRelated Words advance, advertise, boost, plug, promote, publicize; announce, blaze, call, proclaim, pronounce, say; accent, accentuate, emphasize, stress, underline, underscore; advocate, champion, defend, espouse, support, uphold; assure, convince, persuade; explain, justify, rationalize; reaffirm, reassertNear Antonyms minimize, understate; disregard, ignore, neglect, overlook




guarantee

noun

Synonyms and Antonyms of guarantee

  1. 1 a formal agreement to fulfill an obligation <the contractors gave us a written guarantee that the work on the house would be done by Christmas> Synonyms bond, contract, covenant, deal, guaranty, surety, warranty Related Words oath, pledge, troth, vow, word; accord, bargain, compact, concordat, convention, pact, treaty; assurance, insurance, seal; bail, deposit, pawn, security

  2. 2 something given or held to assure that the giver will keep a promise <you'll have to give your car keys as a guarantee that you'll come back> Synonyms gage, pledge, guaranty, pawn, securityRelated Words bail, bond; deposit, down payment, earnest, handsel; surety, warranty; assurance, oath, promise, troth, word; commitment, compact, contract, covenant; recognizance





Seen and Heard

What made you want to look up guarantee? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a timid, meek, or unassertive person

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alt-5746713d76276

Which of these is a synonym of nonplus?

disapprove soothe perplex reduce
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ