What does the word ingress mean?

Usage examples for ingress

  1. It is true that sometimes they have to provide means to prevent the ingress of too much water; but this is very easily done. – Rollo in Holland by Jacob Abbott
  2. We found nothing except, near the bottom of the pool, the commencement of a tunnel large enough for the ingress and egress of one of those tiny submersibles the credit for inventing which neither Mr. Henry Ford nor Professor Parker ever tires of giving the other. – Modern American Prose Selections by Various