American English

Definition of ensure verb from the Oxford Advanced American Dictionary



(also insure) verb
Verb Forms present simple I / you / we / they ensure
he / she / it ensures
past simple ensured
-ing form ensuring
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 to make sure that something happens or is definite ensure something The book ensured his success. ensure somebody something Victory ensured them a place in the final. ensure (that)… Please ensure (that) all lights are switched off.
See the Oxford Advanced Learner's Dictionary entry: ensure