Threshold
Part of speech: noun
Definition: The bottom-most part of a doorway that one crosses to enter; a sill. An entrance The start of the landing area of a runway The quantitative point at which an action is triggered, especially a lower limit The wage or salary at which income tax becomes due The outset of an action or project The point where one mentally or physically is vulnerable in response to provocation or to particular things in general. As in emotions, stress, or pain.
Example sentence: Civil disobedience has an honourable history, and when the urgency and moral clarity cross a certain threshold, then I think that civil disobedience is quite understandable, and it has a role to play.
Door
Part of speech: noun
Definition: A portal of entry into a building or room, consisting of a rigid plane movable on a hinge. Doors are frequently made of wood or metal. May have a handle to help open and close, a latch to hold the door closed and a lock that ensures the door cannot be opened without the key.An non-physical entry into the next world, a particular feeling, a company, etc.A software mechanism by which a user can interact with a program running remotely on a bulletin board system.
Part of speech: verb
Definition: To cause a collision by opening the door of a vehicle in the front of an oncoming cyclist or pedestrian.
Example sentence: I love driving cars, looking at them, cleaning and washing and shining them. I clean 'em inside and outside. I'm very touchy about cars. I don't want anybody leaning on them or closing the door too hard, know what I mean?