a person's indication that one affirms the truth of one's statement. An affirmation serves the same purpose as an oath, in which a person swears to God the truth of the statement made. When persons object to making an oath on religious or ethical grounds, an affirmation is commonly accepted in place of an oath. A person who makes an affirmation is subject to the same penalties for perjury as a person who makes an oath. Source: Barron's Dictionary of Legal Terms, Steven H. Gifis, 5th Edition; © 2016