1. Something (as a valve) that shuts off
2. Stoppage, interruption
3. When you shut off something, or when something shuts off, this action is a shutoff. When you shut off something, you use the shutoff switch, button, valve, and so on.
1. Entaille. Coupure au doigt.
2. Interruption. Coupure de courant.
3. Suppression. Coupures dans un film.
4. Billet. Coupure de cent francs.