The phrase "is no more" implies that something has come to an end or has ceased to exist. There are several synonyms that can be used to convey a similar meaning. These include words like extinct, vanished, eliminated, terminated, dead, gone, departed, eradicated, and ceased. Each of these words can be used to express the idea that something has reached its end or has been removed from existence. Using synonyms can help to add variety and nuance to your writing, while still conveying the same basic idea.