make certain
idiom
: 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
Recent Examples on the Web
Family history matters, too: OCD and anxiety often run in families, and temperamental similarities can make certain behaviors more likely to emerge.
—
Daniella Gray, MSNBC Newsweek, 16 Aug. 2025
Industry executives warn these fees could be devastating for early-stage startups and make certain financial transactions economically impossible for consumers.
—Aj Dhaliwal, Forbes.com, 14 Aug. 2025
The commissioner could make certain data harder to access, devote fewer resources to some topics or close some data series altogether.
—Thomas A. Stapleford, The Conversation, 8 Aug. 2025
But without due diligence and understanding what luxury residents really want will make certain developments fall flat.
—Sydney Lake, Fortune, 6 Aug. 2025
See All Example Sentences for make certain
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Daniella Gray, MSNBC Newsweek, 16 Aug. 2025
Industry executives warn these fees could be devastating for early-stage startups and make certain financial transactions economically impossible for consumers.
—Aj Dhaliwal, Forbes.com, 14 Aug. 2025
The commissioner could make certain data harder to access, devote fewer resources to some topics or close some data series altogether.
—Thomas A. Stapleford, The Conversation, 8 Aug. 2025
But without due diligence and understanding what luxury residents really want will make certain developments fall flat.
—Sydney Lake, Fortune, 6 Aug. 2025
See All Example Sentences for make certain
Cite this Entry
“Make certain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/make%20certain. Accessed 3 Sep. 2025.
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