Definition of introduction noun from the Oxford Advanced American Dictionary

     

    introduction

     noun
    noun
    NAmE//ˌɪntrəˈdʌkʃn//
     
     
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    bringing into use/to a place
  1. 1[uncountable] the act of bringing something into use or existence for the first time, or of bringing something to a place for the first time the introduction of new manufacturing methods the introduction of compulsory military service the 1 ,000th anniversary of the introduction of Christianity to Russia
  2. 2 [countable] a thing that is brought into use or introduced to a place for the first time The book lists plants suitable for your flower garden, among them many new introductions.
  3. of people
  4. 3[countable] introduction (to somebody) the act of making one person formally known to another, in which you tell each the other's name Introductions were made and the conversation started to flow. Our speaker today needs no introduction (= is already well known). a letter of introduction (= a letter that tells someone who you are, written by someone who knows both you and the person reading the letter)
  5. first experience
  6. 4[singular] introduction (to something) a person's first experience of something This album was my first introduction to modern jazz.
  7. of book/speech
  8. 5[countable, uncountable] introduction (to something) the first part of a book or speech that gives a general idea of what is to follow a brief introduction a book with an excellent introduction and notes By way of introduction, let me give you the background to the story. compare preface
  9. to subject
  10. 6[countable] introduction (to something) a book or course for people beginning to study a subject An Introduction to Astronomy It's a useful introduction to an extremely complex subject.
  11. in music
  12. 7[countable] (music) a short section at the beginning of a piece of music an eight-bar introduction
See the Oxford Advanced Learner's Dictionary entry: introduction