A fictitious name is a name that is not the given name of a person or entity, but is instead created for a particular purpose. ANONYM, PSEUDONYM, ALIAS, and ROE are all types of fictitious names. ANONYM is a six-letter name that is used to refer to a person whose identity is unknown or withheld. PSEUDONYM is a nine-letter name that is used as an alternative to a person's real name, typically for the purpose of hiding their true identity. ALIAS is a five-letter name that is used as an alternative name or nickname for a person or entity. ROE is a three-letter name that is used to refer to an anonymous or unknown person or entity.