The FindLaw Legal Dictionary -- free access to over 8260 definitions of legal terms. Search for a definition or browse our legal glossaries.An affidavit is a written statement made under oath that is typically used in legal proceedings. Learn their purpose, when to use, and how to write. A written statement that someone makes after promising officially to tell the truth. An affidavit can be used as proof in a law court. (i) Does not deny the allegations set forth in the affidavit. CSPA allows children who turn 21 years old after an asylum application is filed but prior to adjudication to continue to be classified as children.