The term "multimillion" is often used to describe an amount of money that reaches several million dollars. However, there are several synonyms that can be used instead of this word. Some of these include "mega," "gigantic," "enormous," and "colossal." Other possible terms include "astronomical," "massive," "monumental," and "towering." These words convey both the size and importance of the amount in question, whether it's a fortune, project budget, or company net worth. Using such synonyms can help add depth and variety to your writing, while also making it more engaging and captivating for your readers.