A language group is a classification of languages that are thought to have a common ancestor and share similar features and structures. These groups are typically based on linguistic and historical evidence. Language groups can encompass multiple related languages, known as a language family, or they can refer to a smaller sub-group within a family. Examples of language groups include Indo-European (which includes languages such as English, Spanish, Hindi, and Russian), Niger-Congo (which includes languages such as Swahili, Yoruba, and Zulu), and Sino-Tibetan (which includes Mandarin, Cantonese, and Tibetan).
