A metaphor is a comparison of at least 2 things, but it does no use the words “like” or “as” in it. Metaphors are commonly used in literature to describe something in more detail and it’s a very important literary term to understand.
An example of a metaphor is below.
His face was a red tomato.
This is an example of a metaphor because it is comparing his face to a tomato. This probably means that he was a little embarrassed by something that happened. This is a metaphor because it does not use the words “like” or “as” in it.