What does the word erect mean?

Usage examples for erect

  1. Just a few yards from him rode Colonel George, erect and easy, but also evidently with no eyes for anything but the hounds; and close after him came three more, while the sixth was a full hundred yards behind. – The Drummer's Coat by J. W. Fortescue
  2. " Now," said Elizabeth, sitting erect again, " what is it? – Black Jack by Max Brand
  3. The colour came back to his face; he dropped one leg over the bed's edge; and she stood erect and stepped aside for him to rise. – The Dark Star by Robert W. Chambers