Language development refers to the process by which children learn to communicate using words, sentences, and grammar. This process typically begins in infancy, as babies start to recognize sounds and patterns in speech. By the age of two, many children can form simple sentences and express their needs and thoughts. As children grow, their vocabulary expands, and they become more proficient in using language. Factors such as environment, social interactions, and cognitive development play crucial roles in this growth. By the time they reach school age, most children can engage in conversations, understand complex ideas, and use language for various purposes.