To provide eye-witness accounts or other forms of evidence to a court of law while under oath.
When one testifies, the evidence he or she provides is called a testimony.
"Nancy Pelosi and Elizabeth Taylor testifying before the House Budget Committee on HIV/AIDS funding, March 6, 1990" by is licensed under CC BY.
A08 The Ghostway (05-03) p. 214 A08 The Ghostway (05-03) p. 245
Cambridge Dictionary 2016 Testify. http://dictionary.cambridge.org/dictionary/english/testify, accessed July 6, 2016.
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