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 …

Phrasal verb insure against something (Definition of insuring from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

INSURE definition: to guarantee against loss or harm. See examples of insure used in a sentence.

To provide or arrange insurance for: a company that insures homeowners and businesses. b. To acquire or have insurance for: insured herself against losses; insured his car for theft. 2. To make sure, …

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

in•sure /ɪnˈʃʊr, -ˈʃɜr/ v. [~ + object], -sured, -sur•ing. Business to guarantee (someone or something) against death, loss, or damage: The car was insured. ensure. in•sur•er, n. [countable] See -cura-. …

If you insure yourself or your property, you pay money to an insurance company so that, if you become ill or if your property is damaged or stolen, the company will pay you a sum of money. For protection …