make certain

phrase

: to do something or find out something so that one has no doubt about whether something is true, correct, will happen, etc.
Make certain (that) you lock the door when you leave.
We must make certain this doesn't happen again.
She made certain she thanked each of them for coming.

Examples of make certain in a Sentence

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Louvelle makes a point of vetting everything at every stage, specifically to make certain that any party involved in any transaction can do so with trust and faith. Rachel Elspeth Gross, Forbes.com, 28 Aug. 2026 To help account for differences in opportunity to make certain actions, the stats are per 30 minutes of team possession. Thom Harris, New York Times, 26 Aug. 2026 For one, they’re loaded with vitamin C, which helps your body make certain white blood cells. Lindsay Curtis, HEALTH, 15 Aug. 2026 Southern Humidity Southern heat and humidity can make certain trees more prone to summer leaf drop than trees in other regions. Bianca Lambert, Southern Living, 12 Aug. 2026 See All Example Sentences for make certain

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Cite this Entry

“Make certain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/make%20certain. Accessed 1 Sep. 2026.

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