The Limitation of the Problem

1. Definition of Vocabulary

Vocabulary is one the language components; it supports the teaching and learning of the four skills. In learning language, vocabulary plays a very important role. How can students understand what they listen, reads or writes if students do not understand any word? Vocabulary is very important in English teaching and learning. If the learner do not know the meaning of word, they will have difficulty in understanding what they see, read, and learn. Their vocabulary will increase if they read more word. This reason makes vocabulary imortant; a bad mastery of vocabulary will cause bad understanding of the text. Vocabulary is a core component of language proficiency and provides much of the basic for how well learners speak, listen, read and write. 2 According to A.S Hornby, Vocabulary is all the words that a person knows or uses, the words that people use when they talking about particular subject; and also a list of words with their meaning, especially in a book for learning a foreign language. 3 While Harimurti kridalaksana says, “kosakata adalah komponen bahasa yang memuat informasi tentang makna dan penggunaan kata dalam suatu bahasa.”vocabulary is a component of a language that maintains all information about meaning and using words in a language. 4 According to Merriam Webster’s ninth collegiate dictionary, vocabulary is: a A list or collection of word and often phrases, abbreviation inflectional form, etc. usually arranged as in alphabetical order and defined or otherwise identified as in a dictionary of glossary. 2 Jack C. Richard and Willy A.Renandya, ed, Methodology in Language Teaching: An Anthology of Current Practice, Cambridge: Cambridge University Press,2002,p.255 3 A.S.Hornby, Oxford Advanced Learne’s Dictionary of International students , London;Oxford University Press,2000p.1506 4 Harimukti Kridalaksana, kamus Linguistik, jakarta; PT gramedia Pustaka utama, 1993 p.127