The phrase "tooth for a tooth" is commonly associated with the concept of revenge. However, there are many alternative synonyms that can be used to express the same idea. For example, "an eye for an eye" or "tit for tat" convey the idea of seeking justice or retribution for an offense committed. Another common synonym is "reciprocity," which implies a mutual exchange of harm or benefit. "Retaliation" is another synonym, which denotes a response to an attack or injury. Other alternatives include "vendetta," "getting even," or "payback." It's important to note that seeking revenge can often lead to a cycle of violence, so it's important to consider the consequences before taking action.