"Set straight" is a common phrase that means to correct or realign someone or something. However, there are several synonyms that can be used to convey a similar meaning. One alternative is "put in order," which implies that something is being organized or arranged. Another synonym is "rectify," which suggests that a mistake or wrongdoing is being corrected. "Adjust," "align," and "straighten out" are also strong contenders, as they all convey the idea of making something right. Overall, there are many ways to convey the idea of setting something straight, and the best synonym will depend on the context and the desired tone.