Question

what do they contain :
Index
Glossary
Dedication
Bibliography
Foreword​

Answer 1

All of them are synonyms their meaning is “meaning “

Answer 2

Dedication—Not every book carries a dedication but, for those that do, it is opposite the copyright page. A dedication is always personal. Professional acknowledgements go on the Acknowledgements page or in the Preface.

Foreword—An introductory essay written by someone other than the author. The Foreword is always signed, usually with the Foreword author’s name, and title. Please note that the Foreword (literally meaning “the word before”) should never be spelled as

Bibliography—The bibliography section lists the sources for works used in your book. Be sure to arrange the sources alphabetically by the author’s last name.

Index—An alphabetical listing of people, places, events, and subjects cited along with page numbers. This is typically done for a scholarly,

i hope it's helpful to u ❤...