easy
Mom assured me that the dog was friendly.
What does Assure mean?
Assure means to make someone feel sure or less worried.
Dictionary definition
To tell someone something confidently so they feel certain or less worried.
Example sentences
Assure in a sentence
medium
The guide assured the hikers that the trail was safe.
hard
A clear explanation can assure readers that the evidence supports the conclusion.
Writing practice
Ready to write your own? Study the examples, then practice assure in a sentence with Sentence Builder checklist feedback.
Quick practice
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Practice the meaning of Assure
Answer three quick questions about its meaning and related words.
Question 1 of 3
Practice 1
What does assure mean?
Assure means to speak confidently so someone feels certain, safe, or less worried.
Practice 2
Which word is closest in meaning to assure?
Reassure is close in meaning to assure in this dictionary entry.
Practice 3
Which word is an antonym of assure?
Worry contrasts with assure in this dictionary entry.
Practice complete
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You completed 3 questions.
Pronunciation coach
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Assure
Voice settings
Sounds like
uh · shoor · strongest beat: shoor
Tap each sound part, then blend the whole word together.
Learn
WordAssure.
Partverb.
MeaningAssure means to make someone feel sure or less worried.
ExampleExample: Mom assured me that the dog was friendly.
Word breakdown
2 syllables. Say each part, then blend the word.
- Syllables
- uh · shoor
- Strongest beat
- shoor
- Ending
- shoor
- Tip
- Put a little extra energy on shoor.
Your turn
Say Assure
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Synonyms
Words like Assure
Antonyms
Opposite words
worryUse when causing concern instead of comfort.
doubtUse when someone feels unsure.
Synonym practice
Want to practice assure synonyms in context? Try a Synonym Search question like "The coach tried to assure the team before the game," then compare close word choices. Practice assure synonyms.
Word family
Assure word family
Base word
assure
adjective
assured
Confident or certain.
noun
assurance
A statement that gives confidence or certainty.
Related words
Explore related words
Student support
Understand Assure
Hint for students
Assure means to make someone feel sure or less worried.
Common mix-up
Assure is not the same as worry. Assure means assure means to make someone feel sure or less worried.
Try it in class or at home
Read this model sentence: The guide assured the hikers that the trail was safe. Clue words: guide, assured, hikers. Underline clue words that show peace, control, patience, or lack of worry. Now write one new sentence that shows assure without using the word assure. Ask: Does my sentence clearly show assure?
Teacher prompt
Ask students to explain this model sentence: "The guide assured the hikers that the trail was safe." Why does assure fit better than worry?
Learning activities
Practice Assure and explore more word games
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Practice ASSURE
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