Throws back is a phrasal verb that means to recall, evoke or remind someone of an earlier time or event. There are several synonyms that could be used to replace the phrase throws back and convey the same meaning. A few common options include reminisces, harks back, recalls, recollects, and alludes to. Depending on the context and tone of the sentence, other alternatives might include evokes, conjures, resurrects, or retrieves. All of these synonyms are useful in describing the act of returning to a past memory or experience, and they can be used in a variety of written or spoken communication to add depth and nuance to the message.