1. (n.) The act of entering; entrance; as, the ingress of air into the lungs.

2. (n.) Power or liberty of entrance or access; means of entering; as, all ingress was prohibited.

3. (n.) The entrance of the moon into the shadow of the earth in eclipses, the sun's entrance into a sign, etc.

4. (v. i.) To go in; to enter.

access adit admission admittance air lock approach channel come in conduit corridor course ditch duct egress entrance entranceway entree entry entryway exit gangplank gangway go in hall in ingression inlet intake means of access opening passage passageway penetrate trench trough troughing troughway tunnel vestibule way way in