Composition definition: the act of combining parts or elements to form a whole.. See examples of COMPOSITION used in a sentence. Composition can encompass different domains, including writing, music, art, and photography. In the context of writing, composition refers to the creation of a written work, such as an essay, story, or poem, where ideas, thoughts, and information are organized and expressed in a coherent and meaningful manner. A composition, which derives from the Latin “to bring together,” refers to how a writer puts words and phrases together to produce a text that is both cohesive and meaningful. The composition may also refer to the writing process, the subject matter of writing, the writing itself, or the name of a college course a student must take. This article focuses on writing exercises. Key Takeaways Composition in writing refers to the way a writer organizes a text. Description, narration ... Composition is another word for writing — the act of writing or the piece of writing that results. It also refers to what something is made of.