- An insurance company or an employee of the insurance company who is responsible for approving the issue of policies. Underwriters approve of the amounts, the terms, and the conditions of the policies.
- noun a person or company that underwrites a share issue or an insurance. When a major company flotation or share issue or loan is prepared, a group of companies (such as banks) will form a syndicate to underwrite the action. The syndicate will be organised by the lead underwriter (in the USA called the managing underwriter), together with a group of main underwriters. These in turn will ask others (sub-underwriters) to share in the underwriting.
- noun somebody who accepts liability for an insurance