We define ensure as “to make sure, certain, or safe” and one sense of insure, “to make certain especially by taking necessary measures and precautions,” is quite similar. But insure has the …

Definition of ensure verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

ENSURE definition: 1. to make something certain to happen: 2. to make something certain to happen: 3. insure . Learn more.

To ensure something, or to ensure that something happens, means to make certain that it happens. Negotiators ensured that the treaty was a significant change in direction. [VERB that] …

Ensure most commonly means to guarantee or make certain, as in Working hard ensures success. Insure typically means to guarantee against loss or harm or, more specifically, to …

Some common synonyms of ensure are assure, insure, and secure. While all these words mean "to make a thing or person sure," ensure, insure, and assure are interchangeable in many …

Synonyms for ENSURES: assures, guarantees, insures, secures, guaranties, cinches, ices, promises; Antonyms of ENSURES: undermines, weakens, enfeebles

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In British English, to ensure that something happens means to make certain that it happens. His reputation was enough to ensure that he was always welcome. In American English, this word …

Nov 27, 2025 · ensure (third-person singular simple present ensures, present participle ensuring, simple past and past participle ensured) (intransitive) To make sure or certain of something …