threshold.

1. a point or level at which something begins, changes, or becomes possible

2. The lower part of a doorway, or the entrance itself.

Use it for

Words that belong together

• minimum threshold
• threshold effect
• cross a threshold

On the page

The effect becomes visible only above a certain threshold.

The committee set a minimum threshold for inclusion.

A small change near the threshold produced a large difference in access.

Usage notes

Primary curation section: Academic. Academic use often names a cutoff or transition level. Also literally the bottom part of a doorway or its entrance. Plural: thresholds.