intro.

Noun

introduction (countable and uncountable, plural introductions)

1. The act or process of introducing.
   • the introduction of a new product into the market
2. A means, such as a personal letter, of presenting one person to another.
   • David was feeling groggy at his introduction to Sophie, and didn't remember her name.
3. An initial section of a book or article, which introduces the subject material.
   • This book features a preface by a well-known botanist, and an introduction by the author's mentor at university.

   Synonyms:

   preface

4. A written or oral explanation of what constitutes the basis of an issue.
   • ECON 101: introduction to economics