Formal:
* Writings: This is a very general term, but it can be used to refer to any written work, including literature.
* Literary works: This term specifically refers to works of fiction, poetry, drama, and non-fiction that are considered to be of artistic or intellectual value.
* Texts: This is a broad term that can refer to any written material, including books, articles, essays, etc.
* The literary arts: This term encompasses all forms of creative writing, including poetry, fiction, drama, and creative non-fiction.
Informal:
* Books: This is a common and informal term that can be used to refer to literature, especially fiction.
* Stories: This term refers to fictional narratives, but it can also be used more broadly to refer to any kind of writing that tells a tale.
* Reading material: This term is used to refer to any kind of material that is meant to be read, including books, magazines, newspapers, etc.
* The written word: This is a general term that refers to any form of writing.
The best synonym to use depends on the specific context. For example, if you are talking about a specific work of literature, you might use "literary work." But if you are talking about literature in general, you might use "writings" or "the literary arts."