The Full Blast Plus 3 Companion is a book designed to be used alongside the "Full Blast Plus 3 Student's Book" and is primarily intended for home use. Its purpose is to assist you in learning vocabulary and understanding grammatical phenomena. At the beginning of the book, there is a page labeled Exercise Instructions. There, you will find all the key words contained in the instructions of the exercises in the Student's Book, Workbook, and Companion, along with their translation into Greek. On the same page, explanations of the abbreviations used in the Companion are provided. These abbreviations indicate what part of speech (noun, verb, adjective, etc.) each word is.

Each module of the Companion includes:

• The new vocabulary of the lesson, in the order it appears in each module of the Student's Book. For each word or expression, the translation into Greek, an example, the part of speech, the definition in English, as well as a selection of useful derivatives and antonyms are given. The vocabulary included in each chapter is divided into active and passive. Active vocabulary is the one you should study more carefully so that you can use it in written and spoken language. Words and expressions that constitute passive vocabulary in each chapter are marked with an asterisk.
• Presentation and explanation of the grammar of each module. Each grammatical phenomenon is accompanied by detailed tables and examples.
• Vocabulary Practice exercises for reviewing and consolidating the words and expressions you learned in the specific module.

At the end of the book, you will also find the following:

• A table of irregular verbs (Irregular Verbs)
• A Vocabulary Index with all the vocabulary of the Companion in alphabetical order. For each word, the part of speech and the translation into Greek are given.