A rental agreement, commonly known as a lease, is a legal document that outlines the terms and conditions of a rental relationship between a landlord and a tenant. However, sometimes you may want to use a different word or phrase to describe this document. Some synonyms for rental agreement include lease agreement, rental contract, tenancy agreement, rental lease, occupancy agreement, and rental arrangement. These terms all refer to the same legal document, but may be used in different contexts or by different people. Regardless of which term you use, it is important to carefully read and understand the terms of your rental agreement before signing it.