Avant-propos is a French word that means "foreword" or "introduction". It is an important part of any literary work as it sets the tone and context for the reader. However, there are a variety of synonyms that can be used instead of "avant-propos". These include "preface", "prologue", "opening statement", "introductory remarks", "preamble", "beginning", and "foreword". Each term conveys a similar meaning and purpose as "avant-propos", but may be more appropriate depending on the context and style of the work. Regardless of which term is used, it is crucial for authors to include an introduction that engages and prepares readers for what lies ahead.