What does the word sharper mean?

Usage examples for sharper

  1. Yet it was, none the less, rather exciting to be conscious of a still sharper reason for interest in the handsome girl, as Kate continued, even now, pre- eminently to remain for her; and a reason- this was the great point- of which the young woman herself could have no suspicion. – The Wings of the Dove, Volume 1 of 2 by Henry James
  2. This time the Naval officer's voice was sharper. – Dave Darrin's Fourth Year at Annapolis by H. Irving Hancock
  3. The frontier had been a challenge to his manhood; now that he had stood every test it had presented to him, its glamour faded and he looked about for a sharper challenge and more exacting labors. – Roosevelt in the Bad Lands by Hermann Hagedorn