What does ensure mean?
Ensure means (intransitive) To make sure or certain of something (usually some future event or condition)..
/ɪnˈʃɔː(ɹ)/ · verb
(intransitive) To make sure or certain of something (usually some future event or condition)..
I use an alarm clock to ensure that I get up on time.
British journalists shun complete respectability, feeling a duty to be ready to savage the mighty, or rummage through their bins. Elsewhere in Europe, government contracts and subsidies ensure that press barons will only defy the mighty so far.
Thenne he cryed hym mercy and sayd Faire knyght for goddes loue slee me not / and I shall ensure the neuer werre ageynst thy lady / but be alwey toward her / Thenne Bors lete hym be
Choose a synonym only when it preserves the intended meaning, tone, and grammar of the full sentence.
Ensure means (intransitive) To make sure or certain of something (usually some future event or condition)..
Common synonyms include ascertain, control, assure, secure.
The opposite depends on the specific sense.
I use an alarm clock to ensure that I get up on time.
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