1. a person or company that provides insurance coverage
Usage: primarily British English
2. a person who gives confidence or certainty to others
Usage: formal

Examples

• The assurer agreed to cover the full cost of the accident.
• She contacted her assurer to file a claim for the damaged property.
• The insurance assurer required a medical examination before approval.
• As an assurer of quality, the company stands behind its products.
• The financial assurer guaranteed the bond payments.
• He served as an assurer for the nervous investors.