What context can I use each word in?
Learn when and how to use these words with these examples!
assure
Example
I assure you that the product will arrive on time. [assure: verb]
Example
She assured me that everything would be fine. [assured: past tense]
guarantee
Example
The company guarantees a full refund if you are not satisfied with the product. [guarantee: noun]
Example
They guarantee that the repairs will be completed within 24 hours. [guarantee: verb]
Good things to know
Which word is more common?
Guarantee is more commonly used than assure in business and official contexts. It is a term frequently encountered in contracts, warranties, and customer service interactions. Assure, although less common, is still widely used in everyday conversations to provide reassurance or make promises.
What’s the difference in the tone of formality between assure and guarantee?
While guarantee is associated with a more formal tone and is commonly used in official or business settings, assure is more versatile and can be employed in both formal and informal contexts, making it suitable for interpersonal communication as well.