Secret languages are specialized forms of communication that are often used to convey messages discreetly. These languages can include codes, ciphers, or even unique slang that only a select group understands. They serve various purposes, such as protecting sensitive information or creating a sense of belonging among members of a community. Examples of secret languages include Pig Latin, where words are altered in a playful way, and Morse code, which uses dots and dashes to represent letters. Additionally, some groups, like spies or criminal organizations, may develop their own secret languages to ensure their communications remain confidential.