Noun
The act of introducing, or bringing to notice.
The act of formally making persons known to each other; a presentation or making known of one person to another by name; as, the introduction of one stranger to another.
That part of a book or discourse which introduces or leads the way to the main subject, or part; preliminary; matter; preface; proem; exordium.
A formal and elaborate preliminary treatise; specifically, a treatise introductory to other treatises, or to a course of study; a guide; as, an introduction to English literature.
Source: Webster's dictionaryThe key to growth is the introduction of higher dimensions of consciousness into our awareness. Laozi
My objection to Liberalism is this that it is the introduction into the practical business of life of the highest kind namely, politics of philosophical ideas instead of political principles. Benjamin Disraeli
Less depends upon the choice of words than upon this, that their introduction shall be justified by pregnant theorems. Carl Friedrich Gauss
A smart coat is a good letter of introduction. Dutch Proverb
Beauty is a good letter of introduction. German Proverb
Beauty is a good letter of introduction. Portuguese Proverb