threshold
/ˈθrɛʃˌhoʊld/
noun
plural
thresholds
plural
thresholds
Britannica Dictionary definition of THRESHOLD
[count]
1
:
a piece of wood, metal, or stone that forms the bottom of a door and that you walk over as you enter a room or building
2
:
the point or level at which something begins or changes
-
If your income rises above a certain threshold, your tax rate also rises.
-
sounds that are above/below the threshold of hearing [=sounds that are too high/low to be heard]
-
I have a low threshold for boredom. [=I get bored easily]
-
He has a high pain threshold. [=he does not feel pain as easily as other people]
on/at the threshold
:
at the beginning of something or very close to something (such as a new condition, an important discovery, etc.)
—
usually + of