A completed contract refers to a project or task that has been finished or executed in its entirety. There are several synonyms that can be used for this term, including "concluded contract," "fulfilled agreement," "resolved undertaking," "finalized project," "accomplished task," and "closed deal." These synonyms can be used interchangeably depending on the context, but they all convey the same idea of finishing a project or task. It is important to use the appropriate synonym that best describes the finished work, whether it is related to business, personal, or academic activities. Regardless of the term used, completing a contract is always a satisfying and fulfilling accomplishment.