introduction

英[,ɪntrə'dʌkʃ(ə)n] 美[,ɪntrə'dʌkʃən]

1. the first section of a communication

2. the act of beginning something new;

"they looked forward to the debut of their new product line"

3. formally making a person known to another or to the public

4. a basic or elementary instructional text

5. a new proposal;

"they resisted the introduction of impractical alternatives"

6. the act of putting one thing into another

7. the act of starting something for the first time; introducing something new;

"she looked forward to her initiation as an adult"

"the foundation of a new scientific society"

"he regards the fork as a modern introduction"