What context can I use each word in?
Learn when and how to use these words with these examples!
vouch
Example
I can vouch for his honesty and integrity. [vouch: verb]
Example
The documents vouch for the authenticity of the painting. [vouch: verb]
Example
As a celebrity, she was asked to vouch for the new skincare line. [vouch: phrasal verb]
guarantee
Example
The company guarantees a full refund if you're not satisfied with the product. [guarantee: noun]
Example
I can guarantee that the job will be completed on time. [guarantee: verb]
Example
The warranty guarantees that the appliance will be repaired or replaced if it breaks down. [guarantee: verb]
Good things to know
Which word is more common?
Guarantee is more commonly used than vouch in everyday language, especially in business and commercial contexts. Vouch is less common and has a more limited usage.
What’s the difference in the tone of formality between vouch and guarantee?
Guarantee is generally more formal than vouch, as it often involves legal or contractual obligations. However, both words can be used in formal or informal contexts depending on the situation.