introduction
nounThe act or process of introducing or the state of being introduced.
nounA means, such as a personal letter, of presenting one person to another.
nounSomething recently introduced; an innovation.
nounSomething spoken, written, or otherwise presented in beginning or introducing something, especially.
nounA preface, as to a book.
nounA short preliminary passage in a larger movement or work.
nounA basic introductory text or course of study.
nounThe act of introducing, or leading or ushering in; the act of bringing in: as, the introduction of manufactures into a country.
nounThe act of inserting: as, the introduction of a probe into a wound.
nounThe act of making acquainted; the formal presentation of persons to one another, with mention of their names, etc.: as, an introduction in person or by letter.