ASSURE Synonyms: 60 Similar and Opposite Words

Q: How is the word 'assure' distinct from other similar verbs?

Some common synonyms of assure are ensure , insure , and secure . While all these words mean "to make a thing or person sure," assure distinctively implies the removal of doubt and suspense from a person's mind. // I assure you that no harm will be done

Q: How does the word 'ensure' relate to other synonyms for 'assure'?

Ensure , insure , and assure are interchangeable in many contexts where they indicate the making certain or inevitable of an outcome, but ensure may imply a virtual guarantee. // the government has ensured the safety of the refugees

Q: Where would 'insure' be a reasonable alternative to 'assure'?

The synonyms insure and assure are sometimes interchangeable, but insure sometimes stresses the taking of necessary measures beforehand. // careful planning should insure the success of the party

Q: In what contexts can 'secure' take the place of 'assure'?

In some situations, the words secure and assure are roughly equivalent. However, secure implies action taken to guard against attack or loss. // sent reinforcements to secure their position

assure

verb

ə-ˈshu̇r

Definition of assure

as in to reassure

to ease the grief or distress of a minister choosing just the right words to assure the grieving parents of the fallen soldier

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in to ensure

to make sure, certain, or safe security measures that assured our safety

Synonyms & Similar Words

Antonyms & Near Antonyms

Synonym Chooser

How is the word assure distinct from other similar verbs?

Some common synonyms of assure are ensure, insure, and secure. While all these words mean "to make a thing or person sure," assure distinctively implies the removal of doubt and suspense from a person's mind.

I assure you that no harm will be done

How does the word ensure relate to other synonyms for assure?

Ensure, insure, and assure are interchangeable in many contexts where they indicate the making certain or inevitable of an outcome, but ensure may imply a virtual guarantee.

the government has ensured the safety of the refugees

Where would insure be a reasonable alternative to assure?

The synonyms insure and assure are sometimes interchangeable, but insure sometimes stresses the taking of necessary measures beforehand.

careful planning should insure the success of the party

In what contexts can secure take the place of assure?

In some situations, the words secure and assure are roughly equivalent. However, secure implies action taken to guard against attack or loss.

sent reinforcements to secure their position

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of assure Kushner reportedly pressed his Hamas counterparts on Sunday to begin the disarmament process and sought to assure them that Israel can be expected to fulfill its end of the agreement. — Timothy Nerozzi, The Washington Examiner, 17 Aug. 2026 Oceanside also has tried to assure its coastal neighbors that more sand for one city will stay in the system and eventually becomes more sand for everybody. — Phil Diehl, San Diego Union-Tribune, 16 Aug. 2026 On Sunday, Beshear stressed that McConnell must do more to assure Kentuckians of his ability to carry out the role as senator. — Kaia Hubbard, CBS News, 16 Aug. 2026 The woman became skeptical, but the scammer allegedly assured her someone from her local police department would get in contact with her to confirm the allegations were legitimate. — Justin Muszynski, Hartford Courant, 15 Aug. 2026 See All Example Sentences for assure

Recent Examples of Synonyms for assure

Verb

What’s kept him reassured is data that show violent crime on trains is low.

— Charlotte Observer, Charlotte Observer, 22 Aug. 2026
The Treasury Department is buying back bonds to reassure investors, but the relief has been temporary.

— Brittney Melton, NPR, 21 Aug. 2026

Definition of reassure

Verb

Among the changes needed on the city’s streets was the welding of more than 200 manhole covers to ensure the race cars don’t suck them up off the road.

— ABC News, ABC News, 23 Aug. 2026
However, Jaworski, who has donated plasma four times, says payment helps to ensure a sustainable supply of the raw material for lifesaving medicines.

— CNN Staff, CNN Money, 23 Aug. 2026

Definition of ensure

Verb

The squeals from the little piggies about to eat lettuce and other vegetation often spark laughter, while others cuddle and comfort some of the guinea pigs.

— ABC News, ABC News, 18 Aug. 2026
Video compilations of Trachtenberg and Panettiere’s characters, Casey Carlyle and Gen Harwood, respectively, have been circulating on social media Monday, with many fans acknowledging the film’s comforting nostalgia amid the tragedy.

— Carly Thomas, HollywoodReporter, 17 Aug. 2026

Definition of comfort

Verb

Training camp standout to preseason star Shortly after the draft concluded in April, Brown signed a rookie contract that guaranteed him just $105,000 at the time of signing.

— Nick Harris, Fort Worth Star-Telegram, 16 Aug. 2026
This guarantees that no matter which parent or caregiver is running the afternoon hustle, everyone is in the loop on expectations beyond drop-off and pick-up times.

— Lauren Brown West-Rosenthal, Parents, 16 Aug. 2026

Definition of guarantee

Verb

These natural waters flow from the earth, carrying muscle-soothing minerals; soaking in them is the best way to end a day spent exploring the destination, which is a true hub for outdoor adventure.

— Evie Carrick, Travel + Leisure, 20 Aug. 2026
Back in South Korea, the skin-care brand has already made a name for itself with its soothing mung bean formulas, which have racked up awards from major K-beauty platforms like Hwahae and, of course, Olive Young.

— Christa Joanna Lee, Allure, 20 Aug. 2026

Definition of soothe

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“Assure.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/assure. Accessed 24 Aug. 2026.

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Synonyms of assure

verb

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Synonyms of assure

verb

Synonym Chooser

Example Sentences

Browse Nearby Words

Articles Related to assure

'Insure' vs. 'Ensure' vs. 'Assure'

Cite this Entry

More from Merriam-Webster on assure

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