Definitions of confirm:

• verb:   make more firm

  Example: "Confirm thy soul in self-control!"

• verb:   administer the rite of confirmation to

  Example: "The children were confirmed in their mother's faith"

• verb:   as of a person to a position

  Example: "The Senate confirmed the President's candidate for Secretary of Defense"

• verb:   establish or strengthen as with new evidence or facts

  Example: "His story confirmed my doubts"

• verb:   strengthen or make more firm

  Example: "The witnesses confirmed the victim's account"