"Early edition" can be replaced with several synonyms to convey the same meaning. Some of these synonyms include "preliminary version," "prepublication copy," "advance copy," or "pre-release edition." Each of these synonyms denotes a published work that is made available before the final, definitive version.
"Preview edition," "preliminary printing," and "sneak peek version" are also suitable alternatives that imply an early release or preview of the work. These synonyms are often used in the context of books, journals, and other printed material.
Overall, these synonyms provide writers with a diverse range of options to describe a preliminary or advanced release of a published work. Using synonyms like these can help to avoid repetition and add variety to written language.