"Sign over" can be used in situations where ownership or control of something is being transferred to another person or entity through a legally binding document. Synonyms for "sign over" include "transfer," "convey," "cede," "assign," "bequeath," "entrust," "devolve," "abdicate," "relinquish," and "yield." These terms are often used in legal contexts, such as transferring property or assigning rights to intellectual property. It's important to use the correct terminology in legal documents to ensure clarity and avoid confusion. Whether you're signing over a car or transferring ownership of a business, using the appropriate synonym will help ensure a smooth and legally sound process.