Expurgatory is a word that denotes the process of censoring or purifying something to remove any offensive or objectionable content. While there aren't too many direct synonyms for expurgatory, there are alternative words that describe similar actions. Some of these include purifying, sanitizing, cleansing, editing, revising, and amending. These terms all suggest a process in which content is carefully examined and modified to ensure that it meets certain standards. They can be used in a variety of contexts, such as editing a book for children, sanitizing a film for general audiences, or revising a document to remove any biased language.