Premonish is a word that means to warn or foresee something negative that might happen in the future. There are several synonyms for the word premonish that can be used in different contexts to express the same meaning. Some of these synonyms include forewarn, admonish, caution, alert, advise, notify, and give notice. These words can be used in various situations, such as when giving warnings of an impending danger, foretelling the consequences of certain actions, or advising someone against certain behavior. It is important to note that while these words have similar meanings, they may differ in tone and level of seriousness, depending on the situation in which they are used.