introduction

Synonyms
3. Introduction, foreword, preface refer to material given at the front of a book to explain or introduce it to the reader. A foreword is part of the front matter and is usually written by someone other than the author, often an authority on the subject of the book. A preface is the author's own statement, and often includes acknowledgments. It follows the foreword (if there is one) and is also part of the front matter. The introduction is always by the author. It may be extensive and is usually printed as part of the text.

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To introduction

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Introduction is always a great word to know.

So is ninnyhammer. Does it mean:

a chattering or flighty, light-headed person.

a fool or simpleton; ninny.

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Collins

World English Dictionary

introduction (ˌɪntrəˈdʌkʃən)

—n
1.	the act of introducing or fact of being introduced
2.	a presentation of one person to another or others
3.	a means of presenting a person to another person, group, etc, such as a letter of introduction or reference
4.	a preliminary part, as of a book, speech, etc
5.	music
	a. an instrumental passage preceding the entry of a soloist, choir, etc
	b. an opening passage in a movement or composition that precedes the main material
6.	something that has been or is introduced, esp something that is not native to an area, country, etc
7.	a basic or elementary work of instruction, reference, etc
8.	logic (qualified by the name of an operation) a syntactic rule specifying the conditions under which a formula or statement containing the specified operator may be derived from others: conjunction-introduction; negation-introduction

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline

Word Origin & History

introduction

late 14c., from O.Fr. introduction, from L. introductionem (nom. introductio) "a leading in," from introductus, pp. of introducere "to lead in, bring in, to introduce," from intro- "inward, to the inside" + ducere "to lead" (see duke). The sense of "formal presentation of one

person to another" is from 1711. Shortened form intro is attested from 1923.

Example sentences

These serve as a lucid introduction to the theory and practice of development.

It is also true that the introduction of big money has permanently changed vertebrate paleontology.

The introduction of the euro next year will cut a swathe through them.

It is amazing how much interest that this new introduction has sparked ps.

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Matching Quote

"It was characteristic of the rise of the Nazi movement in Germany and of the Communist movements in Europe after 1930 that they recruited their members from this mass of apparently indifferent people whom all other parties had given up as too apathetic or too stupid for their attention. The result was that the majority of their membership consisted of people who never before had appeared on the political scene. This permitted the introduction of entirely new methods into political propaganda, and indifference to the arguments of political opponents; these movements not only placed themselves outside and against the party system as a whole, they found a membership that had never been reached, never been "spoiled" by the party system. Therefore they did not need to refute opposing arguments and consistently preferred methods which ended in death rather than persuasion, which spelled terror rather than conviction."

-Hannah Arendt