What term refers to techniques or words used to create a particular effect in literature, such as imagery and metaphor?

The term that refers to techniques or words used to create a particular effect in literature, including imagery and metaphor, is "literary devices." Literary devices are various techniques that writers use to convey their message, evoke emotions, and enhance their storytelling. These include not only imagery and metaphor, but also symbolism, alliteration, personification, and many other techniques that enrich the text and deepen readers' understanding and enjoyment.

Imagery, for example, allows readers to visualize scenes and emotions through descriptive language, while metaphors create connections between unlike things, providing new perspectives. Therefore, recognizing terms collectively categorized as literary devices helps readers identify and analyze the tools that contribute to a work's artistic quality and meaning.