introduction
/ˌɪntrəˈdʌkʃən/ noun
SOMETHING NEW [U] › when you make something exist, happen, or be used for the first time: the introduction of a minimum wage BOOK [C] › the first part of a book or speech BASIC KNOWLEDGE [C] › a book or course which provides basic knowledge about a subject: an introduction to psychology FIRST EXPERIENCE [no plural] › the first time someone experiences something: It was our first introduction to great poetry. FIRST MEETING [C] › when you tell someone another person's name the first time that they meet: [usually plural] Can you do the introductions? TO AN AUDIENCE [C, U] › when you tell an audience who is going to speak to them or perform for them: My next guest needs no introduction.