Mop up is a common phrase used to describe the process of cleaning up a mess or completing a task. However, there are several synonyms that can be used interchangeably with this phrase to convey the same idea. Some of the popular synonyms for mop up include finish up, wrap up, conclude, wind up, complete, finalize, and bring to a close. These synonyms can be used in different contexts and situations, such as when discussing work, projects, or even sports. Using synonyms for mop up can help create variation in your language and make your writing or speech more impactful and interesting.