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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Scratching is a natural response to a skin irritant that increases skin inflammation and can make certain diseases, such as eczema, worse. Teresa Mull, FOXNews.com, 4 July 2026 The memo also directs the EPA to look for ways to make certain replacement parts available more quickly. Tiffani Jackson, Fort Worth Star-Telegram, 30 June 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 7 Jul. 2026.

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