Introduction vs. Preliminary

Difference Between Introduction and Preliminary
Introductionnoun
The act or process of introducing.
Preliminaryadjective
In preparation for the main matter; initial, introductory, preparatory.
These are just the preliminary results.Introductionnoun
A means, such as a personal letter, of presenting one person to another.
Preliminarynoun
A preparation for a main matter; an introduction
Introductionnoun
An initial section of a book or article, which introduces the subject material.
Preliminarynoun
Any of a series of sports events that determine the finalists
Introductionnoun
A written or oral explanation of what constitutes the basis of an issue.
Preliminarynoun
A relatively minor contest that precedes a major one, especially in boxing
Introductionnoun
the first section of a communication
Preliminarynoun
a minor match preceding the main event
Introductionnoun
the act of beginning something new;
they looked forward to the debut of their new product linePreliminarynoun
something that serves as a preceding event or introduces what follows;
training is a necessary preliminary to employmentdrinks were the overture to dinnerIntroductionnoun
formally making a person known to another or to the public
Preliminaryadjective
designed to orient or acquaint with a situation before proceeding;
a preliminary investigationIntroductionnoun
a basic or elementary instructional text
Introductionnoun
a new proposal;
they resisted the introduction of impractical alternativesIntroductionnoun
the act of putting one thing into another
Introductionnoun
the act of starting something for the first time; introducing something new;
she looked forward to her initiation as an adultthe foundation of a new scientific societyhe regards the fork as a modern introduction