A threshold is what you step across when you enter a room. A threshold takes you from one place into another, and when you're about to start something new, you're also on a threshold.

A threshold is a point of departure or transition. Graduation can mark a threshold — when you graduate from circus school, you're standing at the threshold of your new career as a trapeze artist. Another kind of threshold is a limit or boundary. If you have a high threshold for pain, you can tolerate a lot of it, and your dentist can drill away without worrying about your squirming and howling.

Primary Meanings of threshold

the starting point for a new state or experience
the smallest detectable sensation
Full Definitions of threshold

n the starting point for a new state or experience

“on the threshold of manhood”
Type of:
beginning, commencement, first, get-go, kickoff, offset, outset, showtime, start, starting time
the time at which something is supposed to begin

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

door, doorway, room access
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exterior door, outside door
a doorway that allows entrance to or exit from a building
back door, back entrance, backdoor
an entrance at the rear of a building
Dutch door, half door
an exterior door divided in two horizontally; either half can be closed or open independently
front door, front entrance
exterior door (at the entrance) at the front of a building
side door, side entrance
an exterior door at one side of a building
Type of:
entrance, entranceway, entree, entry, entryway
something that provides access (to get in or get out)

n 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

doorsill, doorstep
Type of:
structural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure

n a region marking a boundary

brink, verge
Type of:
bound, boundary, edge
a line determining the limits of an area

n the smallest detectable sensation

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absolute threshold
the lowest level of stimulation that a person can detect
difference limen, difference threshold, differential limen, differential threshold
the smallest change in stimulation that a person can detect
pain threshold
the lowest intensity of stimulation at which pain is experienced
jnd, just-noticeable difference
(psychophysics) the difference between two stimuli that (under properly controlled experimental conditions) is detected as often as it is undetected
Type of:
aesthesis, esthesis, sensation, sense datum, sense experience, sense impression
an unelaborated elementary awareness of stimulation

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