make sure

idiom

: to find out or do something so that one has no doubt about whether something is true, correct, will happen, etc.
Make sure (that) you turn the oven off.
They made sure everyone knew where they were supposed to be.

Examples of make sure in a Sentence

Recent Examples on the Web
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.
Just make sure that items are cut into age-appropriate shapes. Karen Cicero, Parents, 21 Dec. 2025 When looking for a vegan collagen supplement, make sure the product has been third-party tested. Hannah Harper, Health, 21 Dec. 2025 Crews were expected to remain on scene for several hours to make sure that hot spots were taken care of. Dean Fioresi, CBS News, 14 Dec. 2025 Law enforcement is balancing two responsibilities at once — moving fast enough to protect lives but slow enough to make sure nothing is missed. Michael Sinkewicz, FOXNews.com, 14 Dec. 2025 See All Example Sentences for make sure

Browse Nearby Words

Cite this Entry

“Make sure.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/make%20sure. Accessed 24 Dec. 2025.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!