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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Bungie recently acknowledged the existence of arguably the worst bug in Destiny 2’s entire history, the revelation that for years now, loot drops have been bugged to make certain perk combinations close to impossible to get, when all combinations were supposedly supposed to be weighted equally. —

Paul Tassi, Forbes, 5 Nov. 2024 The permits contain a requirement for acoustic monitoring to make certain the devices aren't changing the underwater noise distributions and ways that impact marine mammals. —

Julia Jacobo, ABC News, 4 Dec. 2024 Zoo staff said vets were closely monitoring Zoya’s health and discomfort levels to make certain her quality of life wasn’t diminishing. —

Angel Saunders, People.com, 3 Dec. 2024 In those areas, election administrators must make certain adjustments to accommodate rural, tribal voters. —

Sasha Hupka, The Arizona Republic, 21 Oct. 2024 See all Example Sentences for make certain