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Dictionary definition for: Threshold

1. (n) the starting point for a new state or experience; "on the threshold of manhood"

2. (n) the smallest detectable sensation

3. (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; "he stuck his head in the doorway"

4. (n) the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offer support when passing through a doorway

5. (n) a region marking a boundary

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