Synonyms of preamble

2 Syllables
lead-in, briefing, leadin, intro, hornbook
3 Syllables
exordium, foreword, prologue, preface, prelusion, signifier, prelude, prefacing, prefaced
4 Syllables
introduction, overture, indication, introductions, indications, adumbration
5 Syllables
prefiguration, preliminaries, interpolation, prolegomenon, interpolations