Theories of language explore how humans acquire, understand, and produce language. One prominent theory is the Behaviorist Theory, which suggests that language learning occurs through reinforcement and imitation. Another significant perspective is the Nativist Theory, proposed by Noam Chomsky, which argues that humans are born with an innate ability to learn language, supported by the existence of a universal grammar. Additionally, the Cognitive Theory emphasizes the role of mental processes in language development, suggesting that language is closely linked to thought. The Social Interactionist Theory highlights the importance of social interactions in language learning, positing that communication is shaped by cultural and social contexts.