Language proficiency refers to a person's ability to use a language effectively and accurately. This includes skills in speaking, listening, reading, and writing. For example, someone with high language proficiency in English can hold conversations, understand complex texts, and write clearly. Proficiency can vary from basic to advanced levels. A beginner might know simple phrases, while an advanced speaker can discuss intricate topics. Language proficiency is important for communication in everyday life, education, and work. It helps individuals connect with others and express their thoughts and ideas clearly, making it a valuable skill in our globalized world.