#ingress__ingres__entering__entry__incoming  the act of entering; "she made a grand entrance"
  supertype:  arrival  the act of arriving at a certain place; "they awaited her arrival"
  subtype:  incursion  the act of entering some territory or domain (often in large numbers); "the incursion of television into the American livingroom"
  subtype:  intrusion  entrance by force or without permission or welcome
  subtype:  irruption  a sudden violent entrance; a bursting in; "the recent irruption of bad manners"
  subtype:  entree  the act of entering; "she made a graceful entree into the ballroom"
  subtype:  enrollment__registration__enrolment  the act of enrolling
  subtype:  penetration  the act of entering into or through something; "the penetration of upper management by women"
     subtype:  interpenetration__permeation  thorough penetration
  subtype:  admission__admittance  the act of admitting someone to enter; "the surgery was performed on his second admission to the clinic"
     subtype:  readmission  the act of admitting someone again; "the surgery was performed on his readmission to the clinic"
     subtype:  matriculation__matric  admission to a group (especially a college or university)
  subtype:  accession  the act of entering upon or attaining to a position or right

No statement uses or specializes ingress; click here to add one.