1. The starting point for a new state or experience
   "on the threshold of manhood"
    
2. The entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close
   "She stood hesitantly at the threshold";
   - doorway, door, room access
    
3. 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
   "He tripped over the threshold as he entered the house";
   - doorsill, doorstep
    
4. A region marking a boundary
   "The temperature dropped below the threshold for frost";
   - brink, verge
    
5. The smallest detectable sensation
   "The experiment aimed to determine the threshold for detecting changes in light intensity";
   - limen

1. Modify an array or dataset by replacing values larger or smaller than a given threshold value with another value
   "We thresholded the image to remove noise below a certain intensity"

Derived forms: thresholded, thresholding, thresholds

Type of: aesthesis, beginning, bound, boundary, commencement, edge, entrance, entranceway, entrée, entry, entryway, esthesis [US], get-go [N. Amer], kickoff, outset, sensation, sense datum, sense experience, sense impression, showtime, sill, start, starting time

Part of: wall

Encyclopedia: Threshold