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

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When choosing cat foods, make certain that meat or meat by-products are the first ingredients listed. Matt Robison, Newsweek, 19 Feb. 2025 But there are people every day who get up in the intelligence community, who work hard to make certain that China, Russia, North Korea and Iran are prevented from doing Americans harm. CBS News, 26 Jan. 2025 The right setting: When ironing fabrics that can melt, like polyester, make certain to set the heat according to the label on the clothing. Daley Quinn, Southern Living, 2 Feb. 2025 The department wants to make certain its social media account's messaging and updates are consistent with the Trump administration's goals. Chloe Atkins, NBC News, 24 Jan. 2025 See All Example Sentences for make certain

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“Make certain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/make%20certain. Accessed 3 Mar. 2025.

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