What does the word drift mean?

Usage examples for drift

  1. " Let thy boat drift," he said. – Hugh Wynne, Free Quaker by S. Weir Mitchell
  2. 17 But there is no doubt he perfectly comprehended that the drift of the discourse was to persuade him to resign his sceptre and acknowledge the supremacy of another. – History-of-the-Conquest-of-Peru by Prescott, William Hickling