1. [ verb ] give surety or assume responsibility
Synonyms: vouch

"I vouch for the quality of my products"

Related terms: pledge secure bail stipulate verifier
2. [ noun ] a written assurance that some product or service will be provided or will meet certain specifications
Synonyms: warranty warrantee warrant
Related terms: assurance security stock_warrant deposit
3. [ verb ] promise to do or accomplish
Synonyms: undertake

"guarantee to free the prisoners"

Related terms: promise underwrite
4. [ verb ] make certain of
Synonyms: assure insure ensure secure

"This nest egg will ensure a nice retirement for us" "Preparation will guarantee success!"

Related terms: doom make
5. [ noun ] a pledge that something will happen or that something is true

"there is no guarantee that they are not lying"

Related terms: assurance safety_net
6. [ verb ] stand behind and guarantee the quality, accuracy, or condition of
Synonyms: warrant

"The dealer warrants all the cars he sells" "I warrant this information"

Related terms: back cover certify guarantor
7. [ noun ] a collateral agreement to answer for the debt of another in case that person defaults
Synonyms: guaranty
Related terms: collateral
Similar spelling:   guaranteed