Oral code refers to using verbal communication instead of written communication. There are several synonyms for this term including vocal code, spoken code, and word-of-mouth code. Other possible synonyms for oral code include linguistic code, language code, and phonetic code. Additionally, some may refer to oral code as a verbal agreement or verbal understanding. It is important to note that oral code is often used in cultures where written language is not the primary form of communication, and can have a deeper cultural significance beyond simply being a method of communication. Understanding and respecting these different forms of communication is an important aspect of cross-cultural communication.