make sure
Idioms-
Make certain, establish something without doubt, as in Make sure all the doors are locked . It is also put as make sure of , as in Before you make that speech, make sure of your facts . This usage was first recorded in 1565.
-
make sure of . Act so as to be certain of something, as in He wanted to make sure of his own district before seeking support elsewhere . This usage was first recorded in 1673.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Most of all, he wants to make sure that the trusted contacts understand their roles and that they are capable of handling the task.
From MarketWatch ● Sep. 24, 2026
And of course he was talking about the question of whether the so-called frontier model providers should take their feet off the gas to make sure what they’re building won’t wipe out humanity.
From The Wall Street Journal ● Sep. 24, 2026
“We need to follow these dollars and make sure they’re producing the affordable housing Angelenos deserve,” Councilmember Imelda Padilla said at the meeting.
From Los Angeles Times ● Sep. 23, 2026
"We will slow down as much as necessary in order to make sure that every successive AI technology that we release is actually safe," Amodei added.
From BBC ● Sep. 23, 2026
I take out my phone and look back at the text Brie sent me last week to make sure I didn’t miss something, but it’s exactly how I remembered it.
From "Keeping Pace" by Laurie Morrison
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.