From Longman Dictionary of Contemporary EnglishRelated topics: Insuranceinsurerin‧sur‧er /ɪnˈʃʊərə $ -ˈʃʊrər/ noun [countable]BFIa person or company that providesinsuranceExamples from the Corpusinsurer• Banks, insurers and other financial companies got hit as well.• After Art, I called a few more insurers.• The shares of ordinaryinsurers would be cheap.• The fullcost of stormdamage will be paid by the insurer.• He found that 81 percent of the insurers will write new policies only to consumers whose homes meetstrictunderwritingguidelines.• Once the claims were paid, the insurersdecided amongst themselves who bore the loss and in what proportion.• And last year, insurersexpect the final cost to be as much as a billion pounds.From Longman Business Dictionaryinsurerin‧sur‧er /ɪnˈʃʊərə-ˈʃʊrər/ noun [countable]INSURANCE1an insurance companyIf an insurer failed, the industry organization would pay 90% of all claims.2the insurer/insurers used in a particular insurance contract or legalcase to refer to the company providing insurance. You can refer to ‘the insurers’ even if there is only one companyWhen he tried to recover his loss, the insurers denied liability.