"At knifepoint" is a phrase used to describe a situation where someone is threatened or forced to do something with a knife held to their throat. There are several synonyms that can be used to express this same idea. Some of the more common ones include "held at dagger point," "threatened with a blade," "at blade point," "forced at sword point," or simply "under threat of a knife." These phrases can be used interchangeably and convey similar meanings, all of them implying a sense of danger and urgency that comes with facing a weapon. Using synonyms like these helps to add variety and depth to a writer's vocabulary and allows them to convey their ideas more effectively.