There are several synonyms for the phrase "drives away" depending on the context of the sentence. When referring to an animal or person, the term "shoo" can be used to indicate the action of scaring them off. For insects or pests, "repel" or "deter" can be used to describe the action of keeping them away. If talking about negative thoughts or emotions, "dispel" can be used to describe the act of eliminating them. Additionally, if referring to a physical object or item, "remove" can be used instead of "drives away". Each synonym carries a slightly different connotation and should be used depending on the specific context of the sentence.