The phrase "closes on" has various synonyms which can be used interchangeably in different contexts. The most common synonyms for "closes on" include "approaches", "nears", "ends", "finishes", "culminates", "terminates", "concludes", "shuts down", and "completes". In the commercial world, "closes on" refers to the finalization of a deal or agreement. Thus, it is essential to use appropriate synonyms depending on the context in which the phrase is being used. Using accurate synonyms enhances the clarity and understanding of the message being communicated, making it effectively understood by the intended audience.