What does the word substantiate mean?

Usage examples for substantiate

  1. She gave me once more an appealing glance, as though asking me to substantiate her story. – First Person Paramount by Ambrose Pratt
  2. The protection of the king prevented the Inquisition from obtaining witnesses soon enough to substantiate the charges, and they did not dare to arrest him without further information. – The History of the Inquisition of Spain from the Time of its Establishment to the Reign of Ferdinand VII. by Juan Antonio Llorente
  3. Very thorough investigation of these objections has failed to substantiate them in the least. – The Prospective Mother A Handbook for Women During Pregnancy by J. Morris Slemons