Dictionary.com
Thesaurus.com
Synonyms

insure

American  
[in-shoor, -shur] / ɪnˈʃʊər, -ˈʃɜr /

verb (used with object)

insured, insuring
  1. to guarantee against loss or harm.

    Synonyms:
    warrant
  2. to secure indemnity to or on, in case of loss, damage, or death.

  3. to issue or procure an insurance policy on or for.

  4. ensure.

    Synonyms:
    assure

verb (used without object)

insured, insuring
  1. to issue or procure an insurance policy.

insure British  
/ ɪnˈʃʊə, -ˈʃɔː /

verb

  1. (often foll by against) to guarantee or protect (against risk, loss, etc)

    we insured against disappointment by making an early reservation

  2. (often foll by against) to issue (a person) with an insurance policy or take out an insurance policy (on)

    his house was heavily insured against fire

    after all his car accidents the company refuses to insure him again

  3. another word (esp US) for ensure ensure

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What's the difference between insureensure, and assure? Insure typically means to guarantee against loss or harm or, more specifically, to cover with insurance. Ensure most commonly means to guarantee or make certain, as in Working hard ensures success. Assure usually means to tell someone something with confidence or to cause someone to know something with certainty—it often means the same thing as reassure.It’s no wonder there’s confusion between the three words—all three are verbs that are based on the Latin root sēcūrus, meaning safe. Making things even more confusing is the fact that ensure and insure can be used interchangeably in most senses. Still, insure is much more commonly used in the context of insurance, like car insurance, health insurance, and homeowner’s insurance. These kinds of insurance insure you—they give you coverage that provides you with compensation in certain cases and situations.Ensure is typically used in a more general way in the context of actions that are done to make sure that something happens or is the case, as in We need to ensure that the meeting starts on time.Assure is always used in the context of communication, especially in situations in which someone is trying to make someone else feel better about something. It’s used in the phrase rest assured.Here’s a quick cheat sheet to remember the most common uses of each word:insure = cover with insuranceensure = make sureassure = reassureHere’s an example of insure, ensure, and assure used correctly in a sentence.Example: She assured me that the company has ensured that every employee has the opportunity to be insured.Want to learn more? Read the full breakdown of the difference between insure, ensure, and assure.

Other Word Forms

  • insurability noun
  • insurable adjective
  • overinsure verb (used with object)
  • preinsure verb (used with object)

Etymology

Origin of insure

1400–50; late Middle English; variant of ensure

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Others are concerned about the financial stability of the country and want to insure their purchasing power and be less reliant on the U.S. dollar.

From Barron's

For the Crawfords, keeping their 7,000 square foot house insured has been a nightmare.

From The Wall Street Journal

The last of those cuts was unusually divisive, with Powell arguing in favor to insure against the risks of a sharper slowdown in the labor market.

From The Wall Street Journal

In 2008-09, the Fed extended extraordinary support beyond insured banks to investment banks, the commercial paper market, and insurance companies, such as AIG.

From Barron's

The bank has said the contents of security boxes are generally insured for €10,300 each.

From BBC