Threshold
WordNet
noun
(1) 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
(2) The entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close
"He stuck his head in the doorway"
(3) The smallest detectable sensation
(4) A region marking a boundary
(5) The starting point for a new state or experience
"On the threshold of manhood"
WiktionaryText
Etymology
From , from
Noun
- 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.
- From all the pressure my partner been through lately, his emotion threshold has suddenly gotten pretty low these days. I can tell because he easily loses it when he is around people or hears about anything to do with his concerns.