threshold
🇺🇸
/ˈθreʃhəʊld/
🇬🇧
/ˈθreʃhəʊld/
The bottom part of a doorway that you step over to enter a room or building.
She paused at the threshold before entering the room.
The point where something starts to happen or change.
The noise reached the threshold where it became too loud to ignore.
The beginning of something new or important.
They stood at the threshold of a great adventure.