Definition of introduction
1:something that introduces: such as
a (1) :a part of a book or treatise preliminary to the main portion
(2) :a preliminary treatise or course of study
:a short introductory musical passage
2:the act or process of introducing :the state of being introduced
3:a putting in :insertion
4:something introduced; specifically :a new or exotic plant or animal
Definition of greeting
1:a salutation at meeting
2:an expression of good wishes :regards —usually used in plural - holiday greetings
