US: A document prepared in a prescribed arrangement of words and layout. A rider, policy, endorsement, or application—all of these are forms.
***
A document that completes a policy. This term can also mean an endorsement or rider.
***
Pre-printed document attached to an Insurance Policy giving details of the insured exposure or tailoring the coverage to a specified exposure. Also, any rider or endorsement, such as a deductible endorsement form.
***
The central document or documents of an insurance contract. Forms may be altered by endorsement.