On edge
Feeling very nervous, tense, or anxious, often because something stressful is happening or you’re waiting for something important to happen.
Examples:
1- The quick rise of the new social media app has made the older platforms nervous, afraid they might lose users.
2- The controversial law passed last week has put many civil rights activists on edge, fearing it could limit freedoms.
On edge
Feeling very nervous, tense, or anxious, often because something stressful is happening or you’re waiting for something important to happen.
Examples:
1- The quick rise of the new social media app has made the older platforms nervous, afraid they might lose users.
2- The controversial law passed last week has put many civil rights activists on edge, fearing it could limit freedoms.