Meaning & use
make sure
To take action so that something is certain or definitely true.
See it in a sentence
Please make sure the door is locked before you leave the house.
She double-checked the tickets to make sure they had the right flight time.
A note on using this word
Make sure is typically followed by 'that' plus a clause, though 'that' is often dropped in casual speech.
Words with a similar meaning
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Make it your own
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