This research aims to explain that language acquisition refers to the process in which individuals acquire the ability to use and understand language. This process generally begins at an early age and continues throughout life. Children experience rapid language acquisition through interaction with the surrounding environment, while at older ages, language acquisition involves formal learning and exposure to language variations. Language acquisition involves several stages, including understanding phonology (sounds of language), morphology (word structure), syntax (sentence structure), semantics (meaning of words and sentences), and pragmatics (use of language in social contexts). Genetic and environmental factors play an important role in language acquisition, and each individual experiences unique language development. It is important to note that language acquisition is not only about understanding linguistic structures, but also about using language in communicative situations. This process involves complex interactions between the cognitive, social, and emotional aspects of the individual. Language acquisition is a fundamental ability that supports human communication and plays a role in overall cognitive development.