Third-person singular simple present indicative form of guarantee.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "guarantees" in a sentence
"Calling something "Free Software" is also vague, but there is a rock-solid guarantee at the bottom: the term guarantees you, the recipient of the software,"
""My point was to not provide the market with the kind of guarantees, or what I call guarantees, that we will keep the rate at zero to let the market begin to adjust to know that things can change so you don't shock the market at a later date.""
"This label guarantees that the fish has been obtained from sustainable stocks."