threshold

US /ˈθrɛʃˌold, -ˌhold/

UK /'θreʃhəʊld/

B2
n.NounDegree or level at which something begins
There is a threshold of knowledge on a topic that you need before you can write an essay about it
n.NounA strip of wood, metal, or stone forming the bottom of a doorway and crossed in entering a house or room.
He stood at the threshold of the building, hesitant to enter.
n.NounThe magnitude or intensity that must be exceeded for a certain reaction, phenomenon, result, or condition to occur or be manifested.
The company set a high sales threshold for employees to earn a bonus.
n.NounThe minimum value of a signal that produces a detectable output.
The sensor has a threshold that can be adjusted for different light levels.

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