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Difference between Assure and Ensure

Difference between Assure and Ensure

When it comes to using the words “assure” and “ensure,” many people are not sure which one to use in a particular situation. Both of these words have similar meanings, but there is a subtle difference between them. Let’s take a closer look at the definitions and examples of how to use these words correctly.

What is Assure?

Assure word meaning is to state or declare positively; affirm with confidence. It also means to give assurances; make certain or sure. Assure is derived from the Latin word asserere, meaning “to join, connect, insert.” The root word of asserere is serere, meaning “to join or knit together.” Assure can also be traced back to the Old French word aseurer, which has the same meaning. In English, assure first appeared in the early 15th century. Assure is often used interchangeably with words such as ensure and insure.

However, there is a subtle difference between these words. Assure generally refers to convincing someone or giving someone reassurance about something, whereas ensure means to make certain that something will happen, and insure refers to protecting against loss. For example, you might say, “I assured her that the plane would take off on time,” or “I want to ensure that we have a good turnout for the event.” Assurance can also be used as a noun meaning assurance or guarantee. When used in this way, it is often followed by of.

For example, you might say, “We need your assurance of confidentiality before we can proceed,” or “The company’s assurances of quality convinced me to buy their product.” Assure can also be used as a verb meaning to make certain that something will happen. In this usage, it is often followed by that. For example, you might say, “Please assure me that you will be at the meeting on time,” or “Can you assure me that the package will arrive tomorrow?”

What is Ensure?

Ensure is a word that is often used in business and legal contexts. It typically means to make something certain or definite. For example, a company might want to ensure that its products are of the highest quality before they are released to the public. In the legal realm, parties to a contract might seek to ensure that all terms are met before the agreement is finalized. Ensure can also be used as a verb, meaning to make something happen or cause something to occur. In this sense, it is often used in relation to positive outcomes, such as ensuring that a project is completed on time or that a goal is met. Ensure is a versatile word that can be used in many different contexts. When used correctly, it can help to communicate certainty and boost confidence.

Difference between Assure and Ensure

Assure and ensure are often used interchangeably, but there is actually a subtle difference in meaning. When you assure someone of something, you are telling them that it is true or that it will happen. For example, you might assure your boss that the project will be completed on time. In contrast, when you ensure something, you are taking steps to make sure that it happens. For instance, you might ensure that the project is completed on time by hiring extra staff. In general, ensure is a stronger word than assure, and it is more likely to be used in formal situations. However, both words can be used to give someone a sense of security.


So, what’s the difference between assure and ensure? In short, assure means to give someone confidence while ensure means to make certain. When you are assuring your customers that they can trust you, you are giving them a sense of security. When you are ensuring something is done or will be done, you are making sure it actually happens. Hopefully, this clears up any confusion and helps you use these words correctly in your own writing!

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