Recognising the need for secondary school students to be armed with strong vocabulary skills, this book is written to provide students the opportunity to possess more than 3,000 useful challenging words in one book. Once you are equipped with these vocabularies, you will find greater ease in reading and understanding tough comprehension passages and able to write more engaging essays in your ‘O’ Level English examination papers. With a total of 270 tests divided into four sections, namely Verbs, Nouns, Adjectives and Adverbs, we can confidently declare that this book has covered most of the vocabularies that a student should master at this stage of his/her education. We hope that you will find this publication a fun and stimulating experience.