Breaking A Will

What does Breaking A Will mean in American Law?

The definition of Breaking A Will in the law of the United States, as defined by the lexicographer Arthur Leff in his legal dictionary is:

Achieving the judicial declaration that a will is not valid, because of inauthenticity, or some formal defect in its execution, or some improper behavior like undue influence surrounding its creation. When a will is broken, those who, but for the will, would have taken by intestate succession are the beneficiaries of the process, and they usually are the ones who commence the challenge.