Close out is a term often used in business to refer to the act of completing a transaction or ending a project. It can also mean to liquidate inventory or end a financial quarter. In order to avoid repetition, synonyms for close out can be utilized. These include phrases such as wrap up, finalize, conclude, complete, finish and wind up. Each of these terms can be applied to different contexts depending on the type of business or project, but they all convey the same general meaning of bringing something to an end. Whatever the term used, the important thing is that the task has been accomplished.