Presignify refers to a sign or signal that indicates something is about to happen, such as a premonition or an omen. There are several useful synonyms for presignify that can be used to convey a similar meaning, depending on the context and tone of the message. Some of these words include foreshadow, portend, augur, herald, and predict. Each of these synonyms can be used to describe a situation where there are clear indications of an event or outcome that is likely to occur, either based on past experience or some other form of predictive analysis. Choosing the right synonym for presignify can help writers and speakers communicate their intended message more effectively.