English language skills are important for success on competitive exams. Mastering English vocabulary is key, as verbal ability makes up an important part of many exams like banking, civil services, and teaching exams. The best way to improve vocabulary is through regular practice reading, listening, and using new words in conversations. Learning words in groups or "families" related to a topic, like airport terms, helps make them easier to remember and use naturally. Practicing with a dictionary and games also helps strengthen vocabulary over time.