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
These systems can make certain cancers more resistant to chemotherapy regimens.
—
Andrew Paul, Popular Science, 27 Feb. 2025
The complaint focuses on a Deere software repair tool, known as Service ADVISOR, that is required to make certain repairs.
—Janhoi McGregor, Forbes, 16 Jan. 2025
The complaint also asks for a permanent injunction ordering the prison to make certain policy changes, including allowing the inmates to observe Ramadan, engage in weekly communal prayer, meet regularly with an imam and access religious items.
—Natalie Demaree, Miami Herald, 19 Feb. 2025
Women of Color Have Higher Cancer Risks Racial disparities persist in both cancer diagnoses and death rates that may make certain women particularly susceptible to developing or dying of cancer, the report suggests.
—Lisa Rapaport, EverydayHealth.com, 21 Jan. 2025
See All Example Sentences for make certain
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Andrew Paul, Popular Science, 27 Feb. 2025
The complaint focuses on a Deere software repair tool, known as Service ADVISOR, that is required to make certain repairs.
—Janhoi McGregor, Forbes, 16 Jan. 2025
The complaint also asks for a permanent injunction ordering the prison to make certain policy changes, including allowing the inmates to observe Ramadan, engage in weekly communal prayer, meet regularly with an imam and access religious items.
—Natalie Demaree, Miami Herald, 19 Feb. 2025
Women of Color Have Higher Cancer Risks Racial disparities persist in both cancer diagnoses and death rates that may make certain women particularly susceptible to developing or dying of cancer, the report suggests.
—Lisa Rapaport, EverydayHealth.com, 21 Jan. 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 26 Mar. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share