What does the word canny mean?

Usage examples for canny

  1. It's no' a canny doctrine. – Alec Forbes of Howglen by George MacDonald
  2. A canny man was this Dr. John Cotton, and he decided that inasmuch as the fort belonged to the King, it was proper that it should display the King's Flag, whatever it might be,-" while vessels are passing," he added shrewdly; but that, as for the militia, each company might have its own colors, and not one of them need bear a cross. – The Little Book of the Flag by Eva March Tappan
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