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.
Check towels to make sure all stains are gone before drying (if not, pre-treat stains and wash again). Brandee Gruener, Southern Living, 14 Sep. 2025 All that stuff was important to make sure people felt the club was part of the community. Michael Cox, New York Times, 14 Sep. 2025 If doing so, make sure your posts are strong enough to support the additional weight of the plants. Kamron Sanders, Better Homes & Gardens, 13 Sep. 2025 Plus, make sure to use weights that are appropriate for your current level of strength. Jakob Roze, Health, 8 Sep. 2025 See All Example Sentences for make sure

Cite this Entry

“Make sure.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/make%20sure. Accessed 17 Sep. 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!