A language family is a group of languages that are related to each other through a common ancestral language. Languages within a family share similar features, such as vocabulary, grammar, and sound systems, because they all evolved from the same origin. For example, the Indo-European language family includes many languages spoken in Europe, the Americas, and parts of Asia, such as English, Spanish, Hindi, and Russian.
Each language family can have various branches, which represent further divisions of the languages within the family. For example, in the Indo-European family, the Romance languages (like Spanish and French) and the Germanic languages (like English and German) are separate branches, but they all stem from a common ancestor.