Language knowledge refers to the understanding and ability to use a language effectively. This includes knowing vocabulary, grammar rules, and pronunciation. It allows individuals to communicate ideas, ask questions, and express emotions in a clear manner. Language knowledge can be acquired through formal education, reading, and practice. Additionally, language knowledge encompasses both receptive and productive skills. Receptive skills involve listening and reading, while productive skills include speaking and writing. Mastery of these skills enables people to engage in conversations, comprehend texts, and convey messages accurately, contributing to effective communication in various contexts, such as education, business, and social interactions.