The phrase "makes straight" can be replaced by several synonyms that convey the same meaning. For example, one could use the word "straighten" to describe the action of making something more aligned or less crooked. Another option could be "adjust," which indicates a modification made to a particular object or situation to improve its straightness. Furthermore, the word "rectify" also implies a direction towards making something straight, as it suggests correcting an error or defect. Lastly, the term "align" can be used to describe the process by which separate elements are brought into a straight line. Overall, there are several synonyms that can be used to convey the meaning of "makes straight".