make certain of
idiom
: to make sure that one definitely knows (something)
Make certain of your flight times before you leave for the airport.
Examples of make certain of in a Sentence
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Flying above 10,000 feet all the way, this survey crew took astronomical observations from sun and stars to make certain of bearings and picked up messages radioed from ships at sea.
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Popular Mechanics Editors, Popular Mechanics, 30 Oct. 2020
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Popular Mechanics Editors, Popular Mechanics, 30 Oct. 2020
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“Make certain of.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/make%20certain%20of. Accessed 21 Nov. 2024.
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