Which of the following is a type of figurative language?

A metaphor is a type of figurative language that directly compares two unlike things by stating that one is the other, often to create a more vivid or imaginative expression. For example, saying "Time is a thief" implies that time can take away moments from our lives, just like a thief would take possessions. This comparison helps to convey a deeper meaning or emotional effect beyond the literal interpretation of the words.

In contrast, adjectives and nouns are parts of speech that describe or label things, but they do not convey comparisons or imaginative meanings like figurative language does. Additionally, the subject refers to the part of a sentence that indicates who or what the sentence is about, further distinguishing it from the concept of figurative language which relies on creative expression and imagery.