Vocabulary refers to the set of words, phrases, and terms that a person knows and understands. It encompasses both the comprehension and usage of words in written or spoken language. Building vocabulary is essential for effective communication as well as for acquiring knowledge in various subjects. It involves learning new words, their meanings, spellings, pronunciations, and usage in different contexts. A strong vocabulary has numerous benefits, such as improving comprehension, enhancing writing skills, and boosting confidence in verbal communication.