ABSTRACT Nugraheni, Annisrina Fajri. (2023). The Correlation between Vocabulary Mastery and Writing Skills of Ninth Graders of SMP Negeri 1 Bandongan. A Paper. Magelang: English Department, Faculty of Education and Teacher Training, Universitas Tidar. Advisor 1, Gilang Fadhilia Arvianti, M.Hum., Advisor 2, Taufik Arochman, M.Pd. Keywords: Vocabulary Mastery, Writing Skills, Correlational St…