Ingress

1. v. i. To go in; to enter.
2. n. The act of entering; entrance; as, the ingress of air into the lungs.
3. n. Power or liberty of entrance or access; means of entering; as, all ingress was prohibited.
4. n. The entrance of the moon into the shadow of the earth in eclipses, the sun’s entrance into a sign, etc.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.