definition of
introduction

[1] #1 introduction n. [debut, first appearance, launching, unveiling, entry] the act of beginning something new; "they looked forward to the debut of their new product line". wn

[2] #2 introduction n. the first section of a communication. wn

[3] #3 introduction n. [presentation, intro] formally making a person known to another or to the public. wn

[4] #4 introduction n. a basic or elementary instructional text. wn

[5] #5 introduction n. a new proposal; "they resisted the introduction of impractical alternatives". wn