From Longman Business Dictionaryhirerhir‧er /ˈhaɪərəˈhaɪrər/ noun [countable]1HUMAN RESOURCESa person or organization that hires someone or somethingThe hirer of equipment must provide proof that they carry the necessary insurance.tax breaks for hirers of disadvantaged workers2British EnglishLAW a person who is buying something on hire purchaseUnder a hire purchase agreement, the goods become the hirer’s property only when the final installment has been paid.