Insure is to provide financial protection against potential loss. Ensure is to make certain or guarantee that something will happen or be the case.

Insure and ensure are two words that are often confused due to their similar pronunciation and overlapping meanings, but they are used differently in English.

What does insure mean?

Insure primarily relates to the act of providing financial protection or coverage against potential loss or damage. It is most commonly used in the context of insurance policies.

Example sentence

  • I need to insure my car to protect it from accidents.

What does ensure mean?

On the other hand, ensure is about making certain or guaranteeing that something will happen or be the case. It doesn't necessarily involve insurance or financial matters.

Example sentence

  • I will ensure that the project is completed on time.

Here's a passage to illustrate the difference between the two:

"John wanted to insure his new smartphone, so he purchased an insurance policy that would ensure its replacement in case of theft or accidental damage. This decision gave him peace of mind, knowing that his investment was protected. Additionally, he took several precautions to ensure the phone's security, such as setting a strong password and enabling tracking features. These steps ensured that he would have the best chance of keeping his phone safe and, if necessary, being able to make a successful insurance claim in the future."

In this passage, "insure" is used in the context of purchasing insurance for the smartphone, while "ensure" is used to describe the actions taken to guarantee the phone's safety and security.

Common idioms/phrases

Idioms and Phrases with "Insure":

  • Insure against (something): To take out an insurance policy to protect against a specific risk or event.

*Example: "It's important to insure against fire and theft to protect your valuable possessions."

  • Insure your future: To take steps or make investments to secure one's financial well-being or stability in the future.

*Example: "Investing in a retirement fund is a way to insure your future financial security."

Idioms and Phrases with "Ensure":

  • Ensure (or make sure) of something: To take actions or precautions to guarantee or make certain of a particular outcome or result.

*Example: "I double-checked my schedule to ensure I wouldn't miss the important meeting."

  • Ensure the success of something: To take steps to make certain that a plan, project, or endeavor is successful.

*Example: "Proper planning and coordination are essential to ensure the success of the event."

  • Ensure a smooth (or seamless) process: To take measures to prevent interruptions, problems, or delays during a process or task.

*Example: "We implemented new software to ensure a smooth transition to the updated system."

  • Ensure one's safety: To take precautions or follow safety protocols to guarantee one's well-being and protection.

*Example: "Wearing a seatbelt ensures your safety while driving."

  • Ensure (or secure) a victory: To take actions or strategies to guarantee a win or success in a competition or endeavor.

*Example: "The team worked hard to ensure a victory in the championship game."

These idiomatic phrases illustrate how "insure" and "ensure" are used differently in contexts related to protection, certainty, and guaranteeing specific outcomes. "Insure" is typically associated with insurance policies and financial protection, while "ensure" relates to making certain or guaranteeing something.

Practice questions

  1. Before you travel abroad, it's important to insure/ensure that your passport is valid for at least six months.
  2. To insure/ensure his family's financial security, he purchased a life insurance policy.
  3. The chef took great care to insure/ensure that every dish was prepared to perfection.
  4. It's a good idea to insure/ensure your valuable possessions in case of theft or damage.
  5. To insure/ensure a smooth transition, the company provided training for all its employees.
  6. Make sure to insure/ensure that all the windows are closed before leaving the house.
  7. The team worked hard to insure/ensure their victory in the championship game.
  8. She wanted to insure/ensure her place in line, so she arrived early for the concert.
  9. It's essential to insure/ensure your health by eating a balanced diet and exercising regularly.
  10. The airline will insure/ensure your luggage against loss or damage during your flight.

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Answers:

  1. ensure
  2. insure
  3. ensure
  4. insure
  5. ensure
  6. ensure
  7. ensure
  8. ensure
  9. ensure
  10. insure

Reference

‘Insure’ vs. ‘Ensure’ vs. ‘Assure’
How to make sure you’re using them right