Pull the plug on is a commonly used phrase that refers to stopping or ending something abruptly. However, there are various synonyms for this phrase. Some alternatives include "cancel," "terminate," "cease," "discontinue," "shut down," "put an end to," "call off," "halt," and "abandon." These synonyms encompass a range of different meanings, from stopping an event or activity to ending a relationship or project. Each of these phrases can substitute for "pull the plug on" depending on the context and the emphasis of the statement. Using synonyms can help to add variety and depth to your language and to communicate with more precision.