be sure
idiom
—used to tell someone not to forget to do something
Be sure to lock the door when you leave.
Examples of be sure in a Sentence
Recent Examples on the Web
Update your emergency kit and be sure to include enough food and water to last for 3 days for each person in your home.
—
Ca Weather Bot, Sacbee.com, 21 Dec. 2025
Keep in mind that shipping speed depends on your delivery address, so be sure to check the timing on the product page.
—Isabel Garcia, PEOPLE, 20 Dec. 2025
As the holiday shopping season marches on, just be sure your purchases don’t add to your clutter.
—Patricia Shannon, Southern Living, 20 Dec. 2025
Ugg Tasman Max Curly Slipper These ultra-soft slippers are selling fast, so be sure to add them to your cart before your size runs out.
—Stephanie Osmanski, Better Homes & Gardens, 20 Dec. 2025
See All Example Sentences for be sure
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Ca Weather Bot, Sacbee.com, 21 Dec. 2025
Keep in mind that shipping speed depends on your delivery address, so be sure to check the timing on the product page.
—Isabel Garcia, PEOPLE, 20 Dec. 2025
As the holiday shopping season marches on, just be sure your purchases don’t add to your clutter.
—Patricia Shannon, Southern Living, 20 Dec. 2025
Ugg Tasman Max Curly Slipper These ultra-soft slippers are selling fast, so be sure to add them to your cart before your size runs out.
—Stephanie Osmanski, Better Homes & Gardens, 20 Dec. 2025
See All Example Sentences for be sure
Cite this Entry
“Be sure.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/be%20sure. Accessed 23 Dec. 2025.
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