| Insurer (n.) One who, or that which, insures; the person or company that contracts to indemnify losses for a premium; an underwriter. Thesaurus Entries approver, bailsman, bondsman, certifier, confirmer, cosignatory, cosigner, endorser, godfather, godparent, guarantee, guarantor, guaranty, mainpernor, mortgagor, notary, notary public, party, ratifier, signatory, sponsor, subscriber, surety, underwriter, upholder, warrantor |