the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close

the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway

An upright structure of masonry, wood, plaster, or other building material serving to enclose, divide, or protect an area, especially a vertical construction forming an inner partition or exterior siding of a building, Something resembling a wall in impenetrability or strength, A defense; means of security or protection, transitive verb_ To confine or seal behind a wall; immure, To block or close (an opening or passage, for example) with or as if with a wall, To close or fill with a wall, as a doorway

The point that must be exceeded to begin producing a given effect or result or to elicit a response, Hence, the place or point of entering or beginning; outset_ as, he is now at the threshold of his argument, The bottom-most part of a doorway that one crosses to enter; a sill

A revealing; disclosure, In architecture, one of the vertical faces of a window-opening or a doorway, included between the face of the wall and that of the window- or door-frame, when such frame is present, The outer side of a window or door frame; the jamb, verb_ make visible, make known to the public information that was previously known only to a few people or that was meant to be kept a secret, disclose directly or through prophets, transitive verb_ To make known (that which has been concealed or kept secret); to unveil; to disclose; to show, Specifically, to communicate (that which could not be known or discovered without divine or supernatural instruction or agency), To uncover; to show and display that which was hidden

A doorway, The frame or barrier of boards, or other material, usually turning on hinges, by which an entrance way into a house or apartment is closed and opened, a structure where people live or work (usually ordered along a street or road), transitive verb_ Slang To strike (a passing bicyclist, for example) by suddenly opening a vehicular door, To serve as a doorman or doorwoman of (a nightclub, for example)

Of or relating to a point of entrance to an organ, especially the transverse fissure of the liver, through which the blood vessels enter, anatomy Of or relating to a porta, especially the porta of the liver, Of or relating to the portal vein or the portal system, noun_ A doorway, entrance, or gate, especially one that is large and imposing, A door or gate; an entrance or opening for passage; specifically, the entire architectural treatment of the entrance and its surroundings of a great or splendid building, as a cathedral