from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A going in or entering.
  • n. Right or permission to enter.
  • n. A means or place of entering.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The act of entering.
  • n. Permission to enter.
  • n. A door or other means of entering.
  • v. To intrude or insert oneself
  • v. To enter (a specified location or area)
  • v. To enter into a zodiacal sign
  • v. To manifest or cause to be manifested in the temporal world; to effect ingression

from the GNU version of the Collaborative International Dictionary of English

  • n. The act of entering; entrance.
  • n. Power or liberty of entrance or access; means of entering.
  • n. The entrance of the moon into the shadow of the earth in eclipses, the sun's entrance into a sign, etc.
  • intransitive v. To go in; to enter.

from The Century Dictionary and Cyclopedia

  • To go in or enter.
  • In astrology, to transit the place which any of the four moderators has reached by direction.
  • n. A going in; the act of entering or passing in; entrance.
  • n. Provision for going in; a place of entrance: as, the ingress and egress are on opposite sides.
  • n. In astronomy, the entrance of the sun into a sign of the zodiac, or of a planet upon the disk of the sun in a transit; in astrology, the transit over the part of the zodiac occupied by the sun, moon, medium cæli, or ascendant.
  • n. In canon law. See access, 7.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the act of entering
  • n. (astronomy) the disappearance of a celestial body prior to an eclipse


from The American Heritage® Dictionary of the English Language, 4th Edition

Middle English ingresse, from Latin ingressus, from past participle of ingredī, to enter : in-, in; see in-2 + gradī, to step; see ghredh- in Indo-European roots.


  • None of the people I talked to or heard from admitted to witnessing anything more than moderate use on L-2, light use on L-1, and none at all on launch day before cabin ingress or scrub.

    NASA Watch: August 2007 Archives

  • The 500-year-old bridge has been suffering "severe problems" with water ingress, which is eroding the masonry.

    BBC News - Home

  • The eternal objects that "ingress" into any actual entity are something like its predicates or qualities; except that no entity can be defined as just the sum of its predicates or qualities, because it is not just a collocation of characteristics (which would be to return to "subject-predicate forms of thought").

    Warren Ellis

  • Between a family history of back problems and a recently-replaced knee joint (and another likely in the future), small cars that require any kind of ingress / egress agility simply aren't in the cards for them.


  • The flat, featureless terrain between the Persian Gulf and Baghdad forced the United States to create "ingress" routes for Tomahawk missiles for Operation Desert Storm in 1991 that took the missiles over Iran Saudi Arabia, Syria and Turkey:


  • P.S. I hope the Mag Light is only used for ingress and egress during the dark hours ... or that could explain some of his success ....

    Fear the man with but one gun! My used-to-be neighbor (Derril) has killed at least 37 deer with one gun.

  • Unlike previous efforts at three-door coupes, including the Mini Clubman and Mazda RX8, the door opens independently of the front and swings wide enough to make ingress/egress easy.

    A Bargain-Priced Hatch

  • The office staff was as confused as I was as to the purpose of my visit, so I excused myself and tried to retreat to the warrens from whence I emerged but found myself unable to open the door that would grant me ingress to the tunnels.

    The Rainbow Clockwerkz

  • While rear-hinged doors can make ingress and egress easier, they are perceived as unsafe and may never get over the "suicide" label.

    Selling a Used Prius

  • She said that she and her colleague has a responsibility to customers to allow them easy ingress and egress from the station.

    Newspaper 'war' at the Embankment


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  • The WordNet definition is confusing. Doesn't the celestial object disappear when the eclipse starts?

    February 29, 2008

  • "The decor in the colonnade was an incongruous mix of wall-to-wall carpets over marble floors and wireless security cameras gazing down from beside carved cherubs in the ceiling. Langdon dubbed it Sterile Renaissance. Beside the arched ingress hung a small bronze plaque."

    - 'Angels and Demons', Dan Brown.

    February 28, 2008