A written statement that someone makes after promising officially to tell the truth. An affidavit can be used as proof in a law court.Affidavit definition: . See examples of AFFIDAVIT used in a sentence. An affidavit is a written statement that you swear is true and that may be used as evidence in a court of law. The affidavit translation process begins when an attorney drafts an affidavit in English. (m) "Default Judgment" is a judgment awarded to a plaintiff when the defendant fails to answer and dispute the plaintiffs claims in the lawsuit. To call upon officially or authoritatively to appear (as before a court) 2.