threshold Meaning and Definition

1. 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

2. 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

3. n. the smallest detectable sensation

4. n. a region marking a boundary

5. n. the starting point for a new state or experience