The term 'threshold' is used to refer to the ENTRANCE or ENTRY point of a building, room, or other area. The crossword solutions for this term include 'ENTRANCE' (8 letters), 'ENTRY' (5 letters), 'DOORSILL' (8 letters), 'limen' (5 letters), 'SILL' (4 letters), 'PORTAL' (6 letters), 'DOOR' (4 letters), 'BRINK' (5 letters), 'DOORWAY' (7 letters), 'VERGE' (5 letters), 'EVE' (3 letters), and 'DOORSTEP' (8 letters), and 'EDGE' (4 letters). All of these words refer to the same concept, which is the point at which one crosses from one area to another.