What is the term for a direct comparison between two unlike things without using "like" or "as"?

A metaphor is a figure of speech that directly compares two unlike things without using "like" or "as." It creates a strong connection between the two things being compared, suggesting that one is the other or has the qualities of the other. Metaphors are powerful tools for creating imagery and conveying meaning. They can evoke emotions, simplify complex ideas, and make language more engaging for the reader. Metaphors can also add depth and layers of meaning to writing, allowing for a deeper understanding of the subject matter.