The phrase "to check over" means to examine or inspect something carefully, usually in order to find any errors, mistakes, problems or issues. It can also mean going through a list or document to make sure everything is correct and complete. The term often refers to checking the accuracy of written work, such as an essay or report, by reading it over thoroughly to ensure that there are no spelling or grammatical errors, and that the content makes sense and flows well. It can also refer to physically inspecting something, such as a car engine or electrical system, in order to identify any problems or issues that need repair. Overall, "to check over" means taking the time and effort to carefully examine something in order to ensure it is correct and functioning properly.